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TheRock/compiler/amd-llvm/llvm/test/CodeGen/Hexagon/cmpbeq.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

28 lines
746 B
LLVM

; RUN: llc -mtriple=hexagon < %s | FileCheck %s
; Check that we generate 'cmpb.eq' instruction for a byte comparision.
@g0 = common global i8 0, align 1
; Function Attrs: nounwind
define i32 @f0(i32 %a0, i32 %a1) #0 {
b0:
%v0 = xor i32 %a1, %a0
%v1 = and i32 %v0, 255
%v2 = icmp eq i32 %v1, 0
br i1 %v2, label %b1, label %b2
; CHECK-NOT: xor(r{{[0-9]+}},r{{[0-9]+}})
; CHECK-NOT: zxtb(r{{[0-9]+}})
; CHECK: cmpb.eq(r{{[0-9]+}},r{{[0-9]+}})
b1: ; preds = %b0
%v3 = trunc i32 %a0 to i8
store i8 %v3, ptr @g0, align 1
br label %b2
b2: ; preds = %b1, %b0
%v4 = phi i32 [ 1, %b1 ], [ 0, %b0 ]
ret i32 %v4
}
attributes #0 = { nounwind }