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59bec0e3c0
Summary: I searched Transforms/ and Analysis/ for 'ByVal' and updated those call sites to check for inalloca if appropriate. I added tests for any change that would allow an optimization to fire on inalloca. Reviewers: nlewycky Differential Revision: http://llvm-reviews.chandlerc.com/D2449 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200281 91177308-0d34-0410-b5e6-96231b3b80d8
50 lines
1.4 KiB
LLVM
50 lines
1.4 KiB
LLVM
; RUN: opt %s -argpromotion -scalarrepl -S | FileCheck %s
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target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
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%struct.ss = type { i32, i32 }
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; Argpromote + scalarrepl should change this to passing the two integers by value.
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define internal i32 @f(%struct.ss* inalloca %s) {
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entry:
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%f0 = getelementptr %struct.ss* %s, i32 0, i32 0
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%f1 = getelementptr %struct.ss* %s, i32 0, i32 1
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%a = load i32* %f0, align 4
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%b = load i32* %f1, align 4
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%r = add i32 %a, %b
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ret i32 %r
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}
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; CHECK-LABEL: define internal i32 @f
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; CHECK-NOT: load
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; CHECK: ret
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define i32 @main() {
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entry:
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%S = alloca %struct.ss
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%f0 = getelementptr %struct.ss* %S, i32 0, i32 0
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%f1 = getelementptr %struct.ss* %S, i32 0, i32 1
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store i32 1, i32* %f0, align 4
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store i32 2, i32* %f1, align 4
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%r = call i32 @f(%struct.ss* inalloca %S)
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ret i32 %r
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}
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; CHECK-LABEL: define i32 @main
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; CHECK-NOT: load
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; CHECK: ret
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; Argpromote can't promote %a because of the icmp use.
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define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca %b) nounwind {
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; CHECK: define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca %b)
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entry:
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%c = icmp eq %struct.ss* %a, %b
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ret i1 %c
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}
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define i32 @test() {
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entry:
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%S = alloca %struct.ss
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%c = call i1 @g(%struct.ss* %S, %struct.ss* inalloca %S)
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; CHECK: call i1 @g(%struct.ss* %S, %struct.ss* inalloca %S)
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ret i32 0
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}
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