10d9e7b1b7
In #149619, for the test of `@dot_follow_modulo_spec_2`, constant folding the addition of two i32 1073741824 causes an overflow from 2^32 to -2^32=-2147483648, which triggers the UB sanitizer. This PR reapplies the previous PR, explicitly casting the addition operand to int64_t first before performing the addition before producing a int32 number via `Constant *C = get(cast<IntegerType>(Ty->getScalarType()), V, isSigned)`
57 lines
2.4 KiB
LLVM
57 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -passes=instsimplify -S < %s | FileCheck %s
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; Test that intrinsics wasm dot call are constant folded
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target triple = "wasm32-unknown-unknown"
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define <4 x i32> @dot_zero() {
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; CHECK-LABEL: define <4 x i32> @dot_zero() {
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; CHECK-NEXT: ret <4 x i32> zeroinitializer
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;
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%res = tail call <4 x i32> @llvm.wasm.dot(<8 x i16> zeroinitializer, <8 x i16> zeroinitializer)
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ret <4 x i32> %res
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}
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; a = 1 2 3 4 5 6 7 8
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; b = 1 2 3 4 5 6 7 8
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; k1|k2 = a * b = 1 4 9 16 25 36 49 64
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; k1 + k2 = (1+4) | (9 + 16) | (25 + 36) | (49 + 64)
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; result = 5 | 25 | 61 | 113
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define <4 x i32> @dot_nonzero() {
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; CHECK-LABEL: define <4 x i32> @dot_nonzero() {
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; CHECK-NEXT: ret <4 x i32> <i32 5, i32 25, i32 61, i32 113>
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;
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%res = tail call <4 x i32> @llvm.wasm.dot(<8 x i16> <i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7, i16 8>, <8 x i16> <i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7, i16 8>)
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ret <4 x i32> %res
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}
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define <4 x i32> @dot_doubly_negative() {
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; CHECK-LABEL: define <4 x i32> @dot_doubly_negative() {
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; CHECK-NEXT: ret <4 x i32> splat (i32 2)
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;
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%res = tail call <4 x i32> @llvm.wasm.dot(<8 x i16> <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>, <8 x i16> <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>)
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ret <4 x i32> %res
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}
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; Tests that i16 max signed values fit in i32
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define <4 x i32> @dot_follow_modulo_spec_1() {
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; CHECK-LABEL: define <4 x i32> @dot_follow_modulo_spec_1() {
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; CHECK-NEXT: ret <4 x i32> <i32 2147352578, i32 0, i32 0, i32 0>
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;
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%res = tail call <4 x i32> @llvm.wasm.dot(<8 x i16> <i16 32767, i16 32767, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>, <8 x i16> <i16 32767, i16 32767, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>)
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ret <4 x i32> %res
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}
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; Tests that i16 min signed values fit in i32
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define <4 x i32> @dot_follow_modulo_spec_2() {
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; CHECK-LABEL: define <4 x i32> @dot_follow_modulo_spec_2() {
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; CHECK-NEXT: ret <4 x i32> <i32 -2147483648, i32 0, i32 0, i32 0>
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;
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%res = tail call <4 x i32> @llvm.wasm.dot(<8 x i16> <i16 -32768, i16 -32768, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>, <8 x i16> <i16 -32768, i16 -32768, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>)
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ret <4 x i32> %res
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}
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