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[RISCV] Update unrelated bad code from test case

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In #131684, we found that the code generated a bnez zero, which is always
false. Since this is unrelated to the regression the test case was added for,
we change the IR here to avoid this test case from having this silly branching
pattern. This will help this test case avoid any changes as we do work to
optimize branches in the RISC-V backend.
This commit is contained in:
Michael Maitland 2025-03-19 11:01:14 -07:00
parent 44744301e9
commit 15c96d6874
1 changed files with 31 additions and 31 deletions
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22
llvm/test/CodeGen/RISCV/push-pop-opt-crash.ll
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@ -1,3 +1,4 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mattr=+zcmp -verify-machineinstrs \ ; RUN: llc -mattr=+zcmp -verify-machineinstrs \
; RUN: -mtriple=riscv32 -target-abi=ilp32 < %s \ ; RUN: -mtriple=riscv32 -target-abi=ilp32 < %s \
; RUN: | FileCheck %s -check-prefixes=RV32IZCMP ; RUN: | FileCheck %s -check-prefixes=RV32IZCMP
@ -11,11 +12,11 @@
declare dso_local void @f1() local_unnamed_addr declare dso_local void @f1() local_unnamed_addr
declare dso_local void @f2() local_unnamed_addr declare dso_local void @f2() local_unnamed_addr
define dso_local void @f0() local_unnamed_addr { define dso_local void @f0(i1 %c) local_unnamed_addr {
; RV32IZCMP-LABEL: f0: ; RV32IZCMP-LABEL: f0:
; RV32IZCMP: .cfi_startproc ; RV32IZCMP: # %bb.0: # %entry
; RV32IZCMP-NEXT: # %bb.0: # %entry ; RV32IZCMP-NEXT: andi a0, a0, 1
; RV32IZCMP-NEXT: bnez zero, .LBB0_2 ; RV32IZCMP-NEXT: beqz a0, .LBB0_2
; RV32IZCMP-NEXT: # %bb.1: # %if.T ; RV32IZCMP-NEXT: # %bb.1: # %if.T
; RV32IZCMP-NEXT: cm.push {ra}, -16 ; RV32IZCMP-NEXT: cm.push {ra}, -16
; RV32IZCMP-NEXT: .cfi_def_cfa_offset 16 ; RV32IZCMP-NEXT: .cfi_def_cfa_offset 16
@ -26,12 +27,11 @@ define dso_local void @f0() local_unnamed_addr {
; RV32IZCMP-NEXT: .cfi_def_cfa_offset 0 ; RV32IZCMP-NEXT: .cfi_def_cfa_offset 0
; RV32IZCMP-NEXT: .LBB0_2: # %if.F ; RV32IZCMP-NEXT: .LBB0_2: # %if.F
; RV32IZCMP-NEXT: tail f2 ; RV32IZCMP-NEXT: tail f2
; RV32IZCMP-NEXT: .Lfunc_end0: ;
; RV64IZCMP-LABEL: f0: ; RV64IZCMP-LABEL: f0:
; RV64IZCMP: .cfi_startproc ; RV64IZCMP: # %bb.0: # %entry
; RV64IZCMP-NEXT: # %bb.0: # %entry ; RV64IZCMP-NEXT: andi a0, a0, 1
; RV64IZCMP-NEXT: bnez zero, .LBB0_2 ; RV64IZCMP-NEXT: beqz a0, .LBB0_2
; RV64IZCMP-NEXT: # %bb.1: # %if.T ; RV64IZCMP-NEXT: # %bb.1: # %if.T
; RV64IZCMP-NEXT: cm.push {ra}, -16 ; RV64IZCMP-NEXT: cm.push {ra}, -16
; RV64IZCMP-NEXT: .cfi_def_cfa_offset 16 ; RV64IZCMP-NEXT: .cfi_def_cfa_offset 16
@ -42,9 +42,9 @@ define dso_local void @f0() local_unnamed_addr {
; RV64IZCMP-NEXT: .cfi_def_cfa_offset 0 ; RV64IZCMP-NEXT: .cfi_def_cfa_offset 0
; RV64IZCMP-NEXT: .LBB0_2: # %if.F ; RV64IZCMP-NEXT: .LBB0_2: # %if.F
; RV64IZCMP-NEXT: tail f2 ; RV64IZCMP-NEXT: tail f2
; RV64IZCMP-NEXT: .Lfunc_end0:
entry: entry:
br i1 poison, label %if.T, label %if.F br i1 %c, label %if.T, label %if.F
if.T: if.T:
tail call void @f1() tail call void @f1()