mirror of
https://github.com/RPCS3/llvm-mirror.git
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64bce9007c
Patch by Artem Radzikhovskyy! Symptom: ExactSIV test produced incorrect analysis of dependencies see LIT tests Bug: At the end of the algorithm when determining dependence direction original author forgot to divide intermediate results by gcd and round result toward zero Although this bug can be fixed with significantly fewer changes I opted to write the code in such a way that reflects the original algorithm that Banerjee proposed, for easier reference in the future. This surprisingly results in shorter code, and fewer quotient and max/min calculations. Changes Summary: - fixed findGCD to return valid x and y so that they match the function description where: ax - by = gcd(a,b) - Fixed ExactSIV test, to produce proper results - Documented the extension of Banerjee's algorithm that the original code author introduced. Banerjee's original algorithm only tested whether Dst depends on Src, the extension also allows us to test whether Src depends on Dst, in one pass. - ExactRDIV test worked fine. Since it uses findGCD(), it needed to be updated.Since ExactRDIV test has very few changes from the core algorithm of ExactSIV I modified the test to have consistent format as ExactSIV. - Updated the LIT tests to be testing for correct values. Differential Revision: https://reviews.llvm.org/D100331
528 lines
17 KiB
LLVM
528 lines
17 KiB
LLVM
; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
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; RUN: | FileCheck %s
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; RUN: opt < %s -analyze -enable-new-pm=0 -basic-aa -da | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.6.0"
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;; for (long unsigned i = 0; i < 10; i++) {
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;; A[i + 10] = i;
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;; *B++ = A[2*i + 1];
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define void @exact0(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact0
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [<=|<]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%add = add i64 %i.02, 10
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%mul = shl i64 %i.02, 1
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%add13 = or i64 %mul, 1
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %add13
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%0 = load i32, i32* %arrayidx2, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 10
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 10; i++) {
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;; A[4*i + 10] = i;
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;; *B++ = A[2*i + 1];
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define void @exact1(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact1
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = shl i64 %i.02, 2
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%add = add i64 %mul, 10
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%mul1 = shl i64 %i.02, 1
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%add23 = or i64 %mul1, 1
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%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %add23
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%0 = load i32, i32* %arrayidx3, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 10
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 10; i++) {
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;; A[6*i] = i;
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;; *B++ = A[i + 60];
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define void @exact2(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact2
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, 6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%add = add i64 %i.02, 60
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %add
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 10
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i <= 10; i++) {
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;; A[6*i] = i;
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;; *B++ = A[i + 60];
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define void @exact3(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact3
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [>]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, 6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%add = add i64 %i.02, 60
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %add
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 11
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 12; i++) {
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;; A[6*i] = i;
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;; *B++ = A[i + 60];
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define void @exact4(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact4
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [>]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, 6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%add = add i64 %i.02, 60
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %add
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 12
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i <= 12; i++) {
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;; A[6*i] = i;
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;; *B++ = A[i + 60];
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define void @exact5(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact5
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [=>|<]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, 6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%add = add i64 %i.02, 60
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %add
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 13
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 18; i++) {
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;; A[6*i] = i;
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;; *B++ = A[i + 60];
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define void @exact6(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact6
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [=>|<]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, 6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%add = add i64 %i.02, 60
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %add
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 18
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i <= 18; i++) {
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;; A[6*i] = i;
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;; *B++ = A[i + 60];
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define void @exact7(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact7
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [*|<]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, 6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%add = add i64 %i.02, 60
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %add
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 19
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 10; i++) {
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;; A[-6*i] = i;
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;; *B++ = A[-i - 60];
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define void @exact8(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact8
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, -6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%sub1 = sub i64 -60, %i.02
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %sub1
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%0 = load i32, i32* %arrayidx2, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 10
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i <= 10; i++) {
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;; A[-6*i] = i;
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;; *B++ = A[-i - 60];
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define void @exact9(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact9
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [>]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, -6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%sub1 = sub i64 -60, %i.02
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %sub1
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%0 = load i32, i32* %arrayidx2, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 11
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 12; i++) {
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;; A[-6*i] = i;
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;; *B++ = A[-i - 60];
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define void @exact10(i32* %A, i32* %B) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK-LABEL: exact10
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [>]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = mul i64 %i.02, -6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
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store i32 %conv, i32* %arrayidx, align 4
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%sub1 = sub i64 -60, %i.02
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %sub1
|
|
%0 = load i32, i32* %arrayidx2, align 4
|
|
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
|
|
store i32 %0, i32* %B.addr.01, align 4
|
|
%inc = add i64 %i.02, 1
|
|
%exitcond = icmp ne i64 %inc, 12
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.end: ; preds = %for.body
|
|
ret void
|
|
}
|
|
|
|
|
|
;; for (long unsigned i = 0; i <= 12; i++) {
|
|
;; A[-6*i] = i;
|
|
;; *B++ = A[-i - 60];
|
|
|
|
define void @exact11(i32* %A, i32* %B) nounwind uwtable ssp {
|
|
entry:
|
|
br label %for.body
|
|
|
|
; CHECK-LABEL: exact11
|
|
; CHECK: da analyze - none!
|
|
; CHECK: da analyze - flow [=>|<]!
|
|
; CHECK: da analyze - confused!
|
|
; CHECK: da analyze - none!
|
|
; CHECK: da analyze - confused!
|
|
; CHECK: da analyze - none!
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
|
|
%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
|
|
%conv = trunc i64 %i.02 to i32
|
|
%mul = mul i64 %i.02, -6
|
|
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
|
|
store i32 %conv, i32* %arrayidx, align 4
|
|
%sub1 = sub i64 -60, %i.02
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %sub1
|
|
%0 = load i32, i32* %arrayidx2, align 4
|
|
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
|
|
store i32 %0, i32* %B.addr.01, align 4
|
|
%inc = add i64 %i.02, 1
|
|
%exitcond = icmp ne i64 %inc, 13
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.end: ; preds = %for.body
|
|
ret void
|
|
}
|
|
|
|
|
|
;; for (long unsigned i = 0; i < 18; i++) {
|
|
;; A[-6*i] = i;
|
|
;; *B++ = A[-i - 60];
|
|
|
|
define void @exact12(i32* %A, i32* %B) nounwind uwtable ssp {
|
|
entry:
|
|
br label %for.body
|
|
|
|
; CHECK-LABEL: exact12
|
|
; CHECK: da analyze - none!
|
|
; CHECK: da analyze - flow [=>|<]!
|
|
; CHECK: da analyze - confused!
|
|
; CHECK: da analyze - none!
|
|
; CHECK: da analyze - confused!
|
|
; CHECK: da analyze - none!
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
|
|
%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
|
|
%conv = trunc i64 %i.02 to i32
|
|
%mul = mul i64 %i.02, -6
|
|
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
|
|
store i32 %conv, i32* %arrayidx, align 4
|
|
%sub1 = sub i64 -60, %i.02
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %sub1
|
|
%0 = load i32, i32* %arrayidx2, align 4
|
|
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
|
|
store i32 %0, i32* %B.addr.01, align 4
|
|
%inc = add i64 %i.02, 1
|
|
%exitcond = icmp ne i64 %inc, 18
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.end: ; preds = %for.body
|
|
ret void
|
|
}
|
|
|
|
|
|
;; for (long unsigned i = 0; i <= 18; i++) {
|
|
;; A[-6*i] = i;
|
|
;; *B++ = A[-i - 60];
|
|
|
|
define void @exact13(i32* %A, i32* %B) nounwind uwtable ssp {
|
|
entry:
|
|
br label %for.body
|
|
|
|
; CHECK-LABEL: exact13
|
|
; CHECK: da analyze - none!
|
|
; CHECK: da analyze - flow [*|<]!
|
|
; CHECK: da analyze - confused!
|
|
; CHECK: da analyze - none!
|
|
; CHECK: da analyze - confused!
|
|
; CHECK: da analyze - none!
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
|
|
%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
|
|
%conv = trunc i64 %i.02 to i32
|
|
%mul = mul i64 %i.02, -6
|
|
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %mul
|
|
store i32 %conv, i32* %arrayidx, align 4
|
|
%sub1 = sub i64 -60, %i.02
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %sub1
|
|
%0 = load i32, i32* %arrayidx2, align 4
|
|
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
|
|
store i32 %0, i32* %B.addr.01, align 4
|
|
%inc = add i64 %i.02, 1
|
|
%exitcond = icmp ne i64 %inc, 19
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.end: ; preds = %for.body
|
|
ret void
|
|
}
|