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Diffstat (limited to 'test/Transforms/LoadCombine/load-combine-aa.ll')
| -rw-r--r-- | test/Transforms/LoadCombine/load-combine-aa.ll | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/test/Transforms/LoadCombine/load-combine-aa.ll b/test/Transforms/LoadCombine/load-combine-aa.ll new file mode 100644 index 0000000..3542dce --- /dev/null +++ b/test/Transforms/LoadCombine/load-combine-aa.ll @@ -0,0 +1,39 @@ +; RUN: opt -basicaa -load-combine -instcombine -S < %s | FileCheck %s +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +define i64 @test1(i32* nocapture readonly noalias %a, i32* nocapture readonly noalias %b) { +; CHECK-LABEL: @test1 + +; CHECK: load i64* +; CHECK: ret i64 + + %load1 = load i32* %a, align 4 + %conv = zext i32 %load1 to i64 + %arrayidx1 = getelementptr inbounds i32* %a, i64 1 + store i32 %load1, i32* %b, align 4 + %load2 = load i32* %arrayidx1, align 4 + %conv2 = zext i32 %load2 to i64 + %shl = shl nuw i64 %conv2, 32 + %add = or i64 %shl, %conv + ret i64 %add +} + +define i64 @test2(i32* nocapture readonly %a, i32* nocapture readonly %b) { +; CHECK-LABEL: @test2 + +; CHECK: load i32* +; CHECK: load i32* +; CHECK: ret i64 + + %load1 = load i32* %a, align 4 + %conv = zext i32 %load1 to i64 + %arrayidx1 = getelementptr inbounds i32* %a, i64 1 + store i32 %load1, i32* %b, align 4 + %load2 = load i32* %arrayidx1, align 4 + %conv2 = zext i32 %load2 to i64 + %shl = shl nuw i64 %conv2, 32 + %add = or i64 %shl, %conv + ret i64 %add +} + |