586d5f91e6
Do not emit deprecated v8-style branches when targeting a v9 processor. As a side effect, this also fixes the emission of useless ba's when doing conditional branches on 64-bit integer values. Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D130006
97 lines
2.1 KiB
LLVM
97 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=sparcv9 -disable-sparc-leaf-proc | FileCheck %s
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;; 1. When emitting code for v9, branches should always explicitly specify
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;; %icc or %xcc.
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;; 2. There should never be a `ba` that jumps into two instructions immediately
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;; following it.
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define void @i(i32 signext %sel) {
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; CHECK-LABEL: i:
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; CHECK: .cfi_startproc
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; CHECK-NEXT: ! %bb.0: ! %entry
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; CHECK-NEXT: save %sp, -176, %sp
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; CHECK-NEXT: .cfi_def_cfa_register %fp
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; CHECK-NEXT: .cfi_window_save
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; CHECK-NEXT: .cfi_register %o7, %i7
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; CHECK-NEXT: cmp %i0, 0
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; CHECK-NEXT: be %icc, .LBB0_2
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; CHECK-NEXT: nop
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; CHECK-NEXT: ! %bb.1: ! %fbb
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; CHECK-NEXT: call f2
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; CHECK-NEXT: nop
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; CHECK-NEXT: ba %icc, .LBB0_3
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; CHECK-NEXT: nop
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; CHECK-NEXT: .LBB0_2: ! %tbb
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; CHECK-NEXT: call f1
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; CHECK-NEXT: nop
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; CHECK-NEXT: .LBB0_3: ! %end
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; CHECK-NEXT: call f3
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; CHECK-NEXT: nop
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; CHECK-NEXT: ret
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; CHECK-NEXT: restore
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entry:
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%cond = icmp eq i32 %sel, 0
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br i1 %cond, label %tbb, label %fbb
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fbb:
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call void @f2()
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br label %end
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tbb:
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call void @f1()
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br label %end
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end:
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call void @f3()
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ret void
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}
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define void @l(i64 %sel) {
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; CHECK-LABEL: l:
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; CHECK: .cfi_startproc
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; CHECK-NEXT: ! %bb.0: ! %entry
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; CHECK-NEXT: save %sp, -176, %sp
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; CHECK-NEXT: .cfi_def_cfa_register %fp
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; CHECK-NEXT: .cfi_window_save
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; CHECK-NEXT: .cfi_register %o7, %i7
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; CHECK-NEXT: cmp %i0, 0
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; CHECK-NEXT: be %xcc, .LBB1_2
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; CHECK-NEXT: nop
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; CHECK-NEXT: ! %bb.1: ! %fbb
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; CHECK-NEXT: call f2
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; CHECK-NEXT: nop
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; CHECK-NEXT: ba %icc, .LBB1_3
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; CHECK-NEXT: nop
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; CHECK-NEXT: .LBB1_2: ! %tbb
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; CHECK-NEXT: call f1
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; CHECK-NEXT: nop
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; CHECK-NEXT: .LBB1_3: ! %end
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; CHECK-NEXT: call f3
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; CHECK-NEXT: nop
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; CHECK-NEXT: ret
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; CHECK-NEXT: restore
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entry:
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%cond = icmp eq i64 %sel, 0
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br i1 %cond, label %tbb, label %fbb
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fbb:
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call void @f2()
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br label %end
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tbb:
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call void @f1()
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br label %end
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end:
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call void @f3()
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ret void
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}
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declare void @f1(...)
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declare void @f2(...)
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declare void @f3(...)
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