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https://github.com/c64scene-ar/llvm-6502.git
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c94da20917
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> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231270 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
2.0 KiB
LLVM
58 lines
2.0 KiB
LLVM
; RUN: opt -loop-reduce -S < %s | FileCheck %s
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;
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; Test LSR's intelligence regarding phi reuse.
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; Verify that scaled GEPs are not reused. rdar://5064068
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target triple = "x86-apple-darwin"
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; Provide legal integer types.
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target datalayout = "n8:16:32:64"
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; CHECK-LABEL: @test(
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; multiplies are hoisted out of the loop
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; CHECK: while.body.lr.ph:
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; CHECK: mul i64
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; CHECK: mul i64
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; GEPs are ugly
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; CHECK: while.body:
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; CHECK: phi
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; CHECK: phi
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; CHECK: phi
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; CHECK: phi
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; CHECK-NOT: phi
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; CHECK: bitcast float* {{.*}} to i1*
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; CHECK: bitcast float* {{.*}} to i1*
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; CHECK: getelementptr i1, i1*
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; CHECK: getelementptr i1, i1*
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define float @test(float* nocapture %A, float* nocapture %B, i32 %N, i32 %IA, i32 %IB) nounwind uwtable readonly ssp {
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entry:
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%cmp1 = icmp sgt i32 %N, 0
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br i1 %cmp1, label %while.body.lr.ph, label %while.end
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while.body.lr.ph: ; preds = %entry
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%idx.ext = sext i32 %IA to i64
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%idx.ext2 = sext i32 %IB to i64
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br label %while.body
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while.body: ; preds = %while.body.lr.ph, %while.body
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%A.addr.05 = phi float* [ %A, %while.body.lr.ph ], [ %add.ptr, %while.body ]
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%B.addr.04 = phi float* [ %B, %while.body.lr.ph ], [ %add.ptr3, %while.body ]
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%N.addr.03 = phi i32 [ %N, %while.body.lr.ph ], [ %sub, %while.body ]
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%Sum0.02 = phi float [ 0.000000e+00, %while.body.lr.ph ], [ %add, %while.body ]
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%0 = load float, float* %A.addr.05, align 4
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%1 = load float, float* %B.addr.04, align 4
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%mul = fmul float %0, %1
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%add = fadd float %Sum0.02, %mul
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%add.ptr = getelementptr inbounds float, float* %A.addr.05, i64 %idx.ext
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%add.ptr3 = getelementptr inbounds float, float* %B.addr.04, i64 %idx.ext2
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%sub = add nsw i32 %N.addr.03, -1
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%cmp = icmp sgt i32 %sub, 0
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br i1 %cmp, label %while.body, label %while.end
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while.end: ; preds = %while.body, %entry
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%Sum0.0.lcssa = phi float [ 0.000000e+00, %entry ], [ %add, %while.body ]
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ret float %Sum0.0.lcssa
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}
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