derek.holloway
7502bf64a4
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32 lines
1.2 KiB
LLVM
32 lines
1.2 KiB
LLVM
;; Source
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;; int square(unsigned short a) {
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;; return a * a;
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;; }
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;; Command
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;; clang -cc1 -triple spir -emit-llvm -O2 -o NoSignedUnsignedWrap.ll test.cl
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;;
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;; Positive tests:
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;;
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; RUN: llc -O0 -mtriple=spirv32-unknown-unknown --spirv-ext=+SPV_KHR_no_integer_wrap_decoration %s -o - | FileCheck %s --check-prefixes=CHECK-SPIRV
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;;
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;; Negative tests:
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;;
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; RUN: llc -O0 -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s --check-prefixes=CHECK-SPIRV-NEGATIVE
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; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv32-unknown-unknown --spirv-ext=+SPV_KHR_no_integer_wrap_decoration %s -o - -filetype=obj | spirv-val %}
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;; Check that backend is able to skip nsw/nuw attributes if extension is
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;; disabled implicitly or explicitly and if max SPIR-V version is lower then 1.4
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; CHECK-SPIRV-DAG: OpDecorate %[[#]] NoSignedWrap
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; CHECK-SPIRV-DAG: OpDecorate %[[#]] NoUnsignedWrap
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;
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; CHECK-SPIRV-NEGATIVE-NOT: OpExtension "SPV_KHR_no_integer_wrap_decoration"
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; CHECK-SPIRV-NEGATIVE-NOT: OpDecorate %[[#]] NoSignedWrap
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; CHECK-SPIRV-NEGATIVE-NOT: OpDecorate %[[#]] NoUnsignedWrap
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define spir_func i32 @square(i16 zeroext %a) local_unnamed_addr {
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entry:
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%conv = zext i16 %a to i32
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%mul = mul nuw nsw i32 %conv, %conv
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ret i32 %mul
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}
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