mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
eb30ce19c4
These intrinsics, not the icmp+select are the canonical form nowadays, so we might as well directly emit them. This should not cause any regressions, but if it does, then then they would needed to be fixed regardless. Note that this doesn't deal with `SCEVExpander::isHighCostExpansion()`, but that is a pessimization, not a correctness issue. Additionally, the non-intrinsic form has issues with undef, see https://reviews.llvm.org/D88287#2587863
46 lines
2.1 KiB
LLVM
46 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -indvars -S | FileCheck %s
|
|
|
|
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"
|
|
|
|
; Make sure that we do not insert trunc in the loop.
|
|
define i32 @test_01(double* %p, double %x, i32* %np, i32* %mp, i32 %k) {
|
|
; CHECK-LABEL: @test_01(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[K:%.*]], i32 1)
|
|
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[SMAX]] to i64
|
|
; CHECK-NEXT: br label [[LOOP:%.*]]
|
|
; CHECK: loop:
|
|
; CHECK-NEXT: [[IV_WIDE:%.*]] = phi i64 [ [[CANONICAL_IV_NEXT_I:%.*]], [[LOOP]] ], [ 0, [[ENTRY:%.*]] ]
|
|
; CHECK-NEXT: [[CANONICAL_IV_NEXT_I]] = add nuw nsw i64 [[IV_WIDE]], 1
|
|
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds double, double* [[P:%.*]], i64 [[IV_WIDE]]
|
|
; CHECK-NEXT: [[LOAD:%.*]] = load atomic double, double* [[GEP]] unordered, align 8
|
|
; CHECK-NEXT: [[MUL:%.*]] = fmul double [[X:%.*]], [[LOAD]]
|
|
; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds double, double* [[P]], i64 [[IV_WIDE]]
|
|
; CHECK-NEXT: store atomic double [[MUL]], double* [[GEP2]] unordered, align 8
|
|
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[CANONICAL_IV_NEXT_I]], [[WIDE_TRIP_COUNT]]
|
|
; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT:%.*]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%iv.wide = phi i64 [ %canonical.iv.next.i, %loop ], [ 0, %entry ]
|
|
%iv.narrow = phi i32 [ %iv.narrow.next, %loop ], [ 0, %entry ]
|
|
%canonical.iv.next.i = add nuw nsw i64 %iv.wide, 1
|
|
%zext = zext i32 %iv.narrow to i64
|
|
%gep = getelementptr inbounds double, double* %p, i64 %zext
|
|
%load = load atomic double, double* %gep unordered, align 8
|
|
%mul = fmul double %x, %load
|
|
%gep2 = getelementptr inbounds double, double* %p, i64 %zext
|
|
store atomic double %mul, double* %gep2 unordered, align 8
|
|
%iv.narrow.next = add nuw nsw i32 %iv.narrow, 1
|
|
%loop.cond = icmp slt i32 %iv.narrow.next, %k
|
|
br i1 %loop.cond, label %loop, label %exit
|
|
|
|
exit:
|
|
ret i32 0
|
|
}
|