141 lines
3.2 KiB
LLVM
141 lines
3.2 KiB
LLVM
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; 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, CCR branches should always explicitly specify
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;; %icc or %xcc.
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;; 2. Branches on the result of a 64-bit compare with constant zero should be
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;; lowered into an instruction in the BPr class (§A.3 in V9 spec).
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;; 3. There should never be a `ba` that jumps into two instructions immediately
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;; following it.
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define void @bricc(i32 signext %sel) {
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; CHECK-LABEL: bricc:
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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 .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 @brxcc(i64 %sel) {
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; CHECK-LABEL: brxcc:
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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, 1
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; CHECK-NEXT: bne %xcc, .LBB1_2
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; CHECK-NEXT: nop
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; CHECK-NEXT: ! %bb.1: ! %tbb
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; CHECK-NEXT: call f1
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; CHECK-NEXT: nop
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; CHECK-NEXT: ba .LBB1_3
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; CHECK-NEXT: nop
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; CHECK-NEXT: .LBB1_2: ! %fbb
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; CHECK-NEXT: call f2
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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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;; Using 1 here because compares with zero
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;; will be lowered into a `brz`, not `be`.
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%cond = icmp eq i64 %sel, 1
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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 @brreg(i64 %sel) {
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; CHECK-LABEL: brreg:
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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: brz %i0, .LBB2_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 .LBB2_3
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; CHECK-NEXT: nop
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; CHECK-NEXT: .LBB2_2: ! %tbb
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; CHECK-NEXT: call f1
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; CHECK-NEXT: nop
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; CHECK-NEXT: .LBB2_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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