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TheRock/compiler/amd-llvm/llvm/test/CodeGen/ARM/clz.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

42 lines
1.3 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=arm-eabi -mattr=+v5t %s -o - | FileCheck %s -check-prefixes=CHECK,INLINE
; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s -check-prefixes=CHECK,LIBCALL
declare i32 @llvm.ctlz.i32(i32, i1)
define i32 @undef_zero(i32 %x) {
; INLINE-LABEL: undef_zero:
; INLINE: @ %bb.0:
; INLINE-NEXT: clz r0, r0
; INLINE-NEXT: bx lr
;
; LIBCALL-LABEL: undef_zero:
; LIBCALL: @ %bb.0:
; LIBCALL-NEXT: b __clzsi2
%tmp.1 = call i32 @llvm.ctlz.i32( i32 %x, i1 true )
ret i32 %tmp.1
}
define i32 @no_undef_zero(i32 %x) {
; INLINE-LABEL: no_undef_zero:
; INLINE: @ %bb.0:
; INLINE-NEXT: clz r0, r0
; INLINE-NEXT: bx lr
;
; LIBCALL-LABEL: no_undef_zero:
; LIBCALL: @ %bb.0:
; LIBCALL-NEXT: cmp r0, #0
; LIBCALL-NEXT: moveq r0, #32
; LIBCALL-NEXT: moveq pc, lr
; LIBCALL-NEXT: .LBB1_1: @ %cond.false
; LIBCALL-NEXT: .save {r11, lr}
; LIBCALL-NEXT: push {r11, lr}
; LIBCALL-NEXT: bl __clzsi2
; LIBCALL-NEXT: pop {r11, lr}
; LIBCALL-NEXT: mov pc, lr
%tmp.1 = call i32 @llvm.ctlz.i32( i32 %x, i1 false )
ret i32 %tmp.1
}
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; CHECK: {{.*}}