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TheRock/compiler/amd-llvm/llvm/test/CodeGen/WebAssembly/simd-illegal-signext.ll
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2026-09-02 16:34:47 -07:00

32 lines
1007 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mattr=+simd128 | FileCheck %s
; Regression test for a crash caused by
; WebAssemblyTargetLowering::ReplaceNodeResults not being
; implemented. Since SIMD is enabled, sign_ext_inreg is custom lowered
; but the result is i16, an illegal value. This requires
; ReplaceNodeResults to resolve, but the default implementation is to
; abort.
target triple = "wasm32-unknown-emscripten"
define void @foo() {
; CHECK-LABEL: foo:
; CHECK: .functype foo () -> ()
; CHECK-NEXT: .local i32
; CHECK-NEXT: # %bb.0: # %entry
; CHECK-NEXT: i32.const 0
; CHECK-NEXT: local.get 0
; CHECK-NEXT: i32.load8_s 0
; CHECK-NEXT: i32.store16 0
; CHECK-NEXT: # fallthrough-return
entry:
%0 = load ptr, ptr undef, align 4
%1 = load i32, ptr %0, align 4
%2 = load i32, ptr undef, align 4
%conv67 = trunc i32 %2 to i8
%conv68 = sext i8 %conv67 to i16
store i16 %conv68, ptr null, align 2
ret void
}