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4c4c0e2b21
Pre-commit for D60006 (Add fcmp UNDEF handling to SelectionDAG::FoldSetCC) Approved by @atanasyan (Simon Atanasyan) llvm-svn: 357354
67 lines
2.6 KiB
LLVM
67 lines
2.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=mips-- -mattr=-fp64 | FileCheck %s -check-prefix=CHECK-FP32
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; RUN: llc < %s -mtriple=mips-- -mcpu=mips32r2 -mattr=+fp64 | FileCheck %s -check-prefix=CHECK-FP64
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; This test case is a simplified version of an llvm-stress generated test with
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; seed=3718491962.
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; It originally failed on MIPS32 with FP64 with the following error:
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; LLVM ERROR: ran out of registers during register allocation
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; This was caused by impossible register class restrictions caused by the use
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; of BuildPairF64 instead of BuildPairF64_64.
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; FIXME: A redundant mthc1 is currently emitted.
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define void @autogen_SD3718491962(double %a0) {
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; CHECK-FP32-LABEL: autogen_SD3718491962:
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; CHECK-FP32: # %bb.0: # %BB
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; CHECK-FP32-NEXT: lui $1, %hi($CPI0_0)
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; CHECK-FP32-NEXT: ldc1 $f0, %lo($CPI0_0)($1)
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; CHECK-FP32-NEXT: mtc1 $zero, $f2
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; CHECK-FP32-NEXT: mtc1 $zero, $f3
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; CHECK-FP32-NEXT: $BB0_1: # %CF88
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; CHECK-FP32-NEXT: # =>This Inner Loop Header: Depth=1
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; CHECK-FP32-NEXT: c.ueq.d $f12, $f0
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; CHECK-FP32-NEXT: addiu $1, $zero, 1
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; CHECK-FP32-NEXT: movf $1, $zero, $fcc0
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; CHECK-FP32-NEXT: c.olt.d $f12, $f2
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; CHECK-FP32-NEXT: addiu $2, $zero, 1
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; CHECK-FP32-NEXT: movt $2, $zero, $fcc0
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; CHECK-FP32-NEXT: and $1, $2, $1
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; CHECK-FP32-NEXT: bnez $1, $BB0_1
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; CHECK-FP32-NEXT: nop
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; CHECK-FP32-NEXT: # %bb.2: # %CF85
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; CHECK-FP32-NEXT: jr $ra
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; CHECK-FP32-NEXT: nop
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;
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; CHECK-FP64-LABEL: autogen_SD3718491962:
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; CHECK-FP64: # %bb.0: # %BB
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; CHECK-FP64-NEXT: lui $1, %hi($CPI0_0)
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; CHECK-FP64-NEXT: ldc1 $f0, %lo($CPI0_0)($1)
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; CHECK-FP64-NEXT: mtc1 $zero, $f1
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; CHECK-FP64-NEXT: mthc1 $zero, $f1
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; CHECK-FP64-NEXT: $BB0_1: # %CF88
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; CHECK-FP64-NEXT: # =>This Inner Loop Header: Depth=1
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; CHECK-FP64-NEXT: c.ueq.d $f12, $f0
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; CHECK-FP64-NEXT: addiu $1, $zero, 1
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; CHECK-FP64-NEXT: movf $1, $zero, $fcc0
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; CHECK-FP64-NEXT: c.olt.d $f12, $f1
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; CHECK-FP64-NEXT: addiu $2, $zero, 1
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; CHECK-FP64-NEXT: movt $2, $zero, $fcc0
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; CHECK-FP64-NEXT: and $1, $2, $1
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; CHECK-FP64-NEXT: bnez $1, $BB0_1
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; CHECK-FP64-NEXT: nop
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; CHECK-FP64-NEXT: # %bb.2: # %CF85
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; CHECK-FP64-NEXT: jr $ra
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; CHECK-FP64-NEXT: nop
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BB:
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%Cmp = fcmp ule double 0.000000e+00, %a0
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%Cmp11 = fcmp ueq double 0xFDBD965CF1BB7FDA, %a0
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br label %CF88
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CF88: ; preds = %CF86
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%Sl18 = select i1 %Cmp, i1 %Cmp11, i1 %Cmp
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br i1 %Sl18, label %CF88, label %CF85
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CF85: ; preds = %CF88
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ret void
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}
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