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llvm-mirror/test/CodeGen/ARM/ifcvt1.ll
Roman Lebedev 7dcf1654f8 [SimplifyCFG] Tail-merging all blocks with ret terminator
Based ontop of D104598, which is a NFCI-ish refactoring.
Here, a restriction, that only empty blocks can be merged, is lifted.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D104597
2021-06-24 13:15:39 +03:00

32 lines
839 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s -check-prefix=A8
; RUN: llc -mtriple=arm-eabi -mcpu=swift %s -o - | FileCheck %s -check-prefix=SWIFT
define i32 @t1(i32 %a, i32 %b) {
; A8-LABEL: t1:
; A8: @ %bb.0: @ %common.ret
; A8-NEXT: mov r2, #1
; A8-NEXT: cmp r0, #0
; A8-NEXT: mvneq r2, #0
; A8-NEXT: add r0, r1, r2
; A8-NEXT: bx lr
;
; SWIFT-LABEL: t1:
; SWIFT: @ %bb.0: @ %common.ret
; SWIFT-NEXT: mov r2, #1
; SWIFT-NEXT: cmp r0, #0
; SWIFT-NEXT: mvneq r2, #0
; SWIFT-NEXT: add r0, r1, r2
; SWIFT-NEXT: bx lr
%tmp2 = icmp eq i32 %a, 0
br i1 %tmp2, label %cond_false, label %cond_true
cond_true:
%tmp5 = add i32 %b, 1
ret i32 %tmp5
cond_false:
%tmp7 = add i32 %b, -1
ret i32 %tmp7
}