mirror of
https://github.com/RPCS3/llvm-mirror.git
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29ebc2d39f
Summary: DataLayout keeps the string used for its creation. As a side effect it is no longer needed in the Module. This is "almost" NFC, the string is no longer canonicalized, you can't rely on two "equals" DataLayout having the same string returned by getStringRepresentation(). Get rid of DataLayoutPass: the DataLayout is in the Module The DataLayout is "per-module", let's enforce this by not duplicating it more than necessary. One more step toward non-optionality of the DataLayout in the module. Make DataLayout Non-Optional in the Module Module->getDataLayout() will never returns nullptr anymore. Reviewers: echristo Subscribers: resistor, llvm-commits, jholewinski Differential Revision: http://reviews.llvm.org/D7992 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 231270
196 lines
4.9 KiB
LLVM
196 lines
4.9 KiB
LLVM
; RUN: opt < %s -indvars -S | FileCheck %s
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target triple = "aarch64--linux-gnu"
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; Provide legal integer types.
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target datalayout = "n8:16:32:64"
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; Check the loop exit i32 compare instruction and operand are widened to i64
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; instead of truncating IV before its use in the i32 compare instruction.
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@idx = common global i32 0, align 4
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@e = common global i32 0, align 4
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@ptr = common global i32* null, align 8
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; CHECK-LABEL: @test1
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; CHECK: for.body.lr.ph:
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; CHECK: sext i32
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; CHECK: for.cond:
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; CHECK: icmp slt i64
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; CHECK: for.body:
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; CHECK: phi i64
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define i32 @test1() {
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entry:
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store i32 -1, i32* @idx, align 4
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%0 = load i32, i32* @e, align 4
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%cmp4 = icmp slt i32 %0, 0
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br i1 %cmp4, label %for.end.loopexit, label %for.body.lr.ph
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for.body.lr.ph:
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%1 = load i32*, i32** @ptr, align 8
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%2 = load i32, i32* @e, align 4
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br label %for.body
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for.cond:
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%inc = add nsw i32 %i.05, 1
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%cmp = icmp slt i32 %i.05, %2
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br i1 %cmp, label %for.body, label %for.cond.for.end.loopexit_crit_edge
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for.body:
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%i.05 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.cond ]
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%idxprom = sext i32 %i.05 to i64
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%arrayidx = getelementptr inbounds i32, i32* %1, i64 %idxprom
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%3 = load i32, i32* %arrayidx, align 4
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%tobool = icmp eq i32 %3, 0
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br i1 %tobool, label %if.then, label %for.cond
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if.then:
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%i.05.lcssa = phi i32 [ %i.05, %for.body ]
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store i32 %i.05.lcssa, i32* @idx, align 4
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br label %for.end
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for.cond.for.end.loopexit_crit_edge:
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br label %for.end.loopexit
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for.end.loopexit:
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br label %for.end
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for.end:
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%4 = load i32, i32* @idx, align 4
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ret i32 %4
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}
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; CHECK-LABEL: @test2
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; CHECK: for.body4.us
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; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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; CHECK: %cmp2.us = icmp slt i64
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; CHECK-NOT: %2 = trunc i64 %indvars.iv.next to i32
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; CHECK-NOT: %cmp2.us = icmp slt i32
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define void @test2([8 x i8]* %a, i8* %b, i8 %limit) {
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entry:
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%conv = zext i8 %limit to i32
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br i1 undef, label %for.cond1.preheader, label %for.cond1.preheader.us
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for.cond1.preheader.us:
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%storemerge5.us = phi i32 [ 0, %entry ], [ %inc14.us, %for.inc13.us ]
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br i1 true, label %for.body4.lr.ph.us, label %for.inc13.us
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for.inc13.us:
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%inc14.us = add nsw i32 %storemerge5.us, 1
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%cmp.us = icmp slt i32 %inc14.us, 4
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br i1 %cmp.us, label %for.cond1.preheader.us, label %for.end
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for.body4.us:
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%storemerge14.us = phi i32 [ 0, %for.body4.lr.ph.us ], [ %inc.us, %for.body4.us ]
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%idxprom.us = sext i32 %storemerge14.us to i64
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%arrayidx6.us = getelementptr inbounds [8 x i8], [8 x i8]* %a, i64 %idxprom5.us, i64 %idxprom.us
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%0 = load i8, i8* %arrayidx6.us, align 1
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%idxprom7.us = zext i8 %0 to i64
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%arrayidx8.us = getelementptr inbounds i8, i8* %b, i64 %idxprom7.us
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%1 = load i8, i8* %arrayidx8.us, align 1
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store i8 %1, i8* %arrayidx6.us, align 1
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%inc.us = add nsw i32 %storemerge14.us, 1
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%cmp2.us = icmp slt i32 %inc.us, %conv
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br i1 %cmp2.us, label %for.body4.us, label %for.inc13.us
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for.body4.lr.ph.us:
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%idxprom5.us = sext i32 %storemerge5.us to i64
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br label %for.body4.us
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for.cond1.preheader:
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%storemerge5 = phi i32 [ 0, %entry ], [ %inc14, %for.inc13 ]
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br i1 false, label %for.inc13, label %for.inc13
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for.inc13:
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%inc14 = add nsw i32 %storemerge5, 1
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%cmp = icmp slt i32 %inc14, 4
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br i1 %cmp, label %for.cond1.preheader, label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: @test3
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; CHECK: sext i32 %b
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; CHECK: for.cond:
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; CHECK: phi i64
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; CHECK: icmp slt i64
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define i32 @test3(i32* %a, i32 %b) {
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entry:
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br label %for.cond
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for.cond:
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%sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ]
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%cmp = icmp slt i32 %i.0, %b
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br i1 %cmp, label %for.body, label %for.end
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for.body:
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%idxprom = sext i32 %i.0 to i64
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%arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom
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%0 = load i32, i32* %arrayidx, align 4
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%add = add nsw i32 %sum.0, %0
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%inc = add nsw i32 %i.0, 1
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br label %for.cond
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for.end:
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ret i32 %sum.0
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}
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declare i32 @fn1(i8 signext)
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; PR21030
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; CHECK-LABEL: @test4
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; CHECK: for.body:
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; CHECK: phi i32
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; CHECK: icmp sgt i8
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define i32 @test4(i32 %a) {
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entry:
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br label %for.body
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for.body:
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%c.07 = phi i8 [ -3, %entry ], [ %dec, %for.body ]
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%conv6 = zext i8 %c.07 to i32
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%or = or i32 %a, %conv6
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%conv3 = trunc i32 %or to i8
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%call = call i32 @fn1(i8 signext %conv3)
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%dec = add i8 %c.07, -1
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%cmp = icmp sgt i8 %dec, -14
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br i1 %cmp, label %for.body, label %for.end
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for.end:
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ret i32 0
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}
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; CHECK-LABEL: @test5
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; CHECK: zext i32 %b
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; CHECK: for.cond:
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; CHECK: phi i64
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; CHECK: icmp ule i64
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define i32 @test5(i32* %a, i32 %b) {
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entry:
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br label %for.cond
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for.cond:
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%sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ]
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%cmp = icmp ule i32 %i.0, %b
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br i1 %cmp, label %for.body, label %for.end
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for.body:
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%idxprom = zext i32 %i.0 to i64
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%arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom
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%0 = load i32, i32* %arrayidx, align 4
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%add = add nsw i32 %sum.0, %0
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%inc = add nsw i32 %i.0, 1
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br label %for.cond
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for.end:
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ret i32 %sum.0
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}
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