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85dbc89f44
If the basic block containing the BCCi64 (or BCCZi64) instruction ends with an unconditional branch, that branch needs to be deleted before appending the expansion of the BCCi64 to the end of the block. llvm-svn: 122521
84 lines
1.6 KiB
LLVM
84 lines
1.6 KiB
LLVM
; RUN: llc < %s -march=arm -mcpu=cortex-a8 -mattr=+vfp2 -enable-unsafe-fp-math -enable-no-nans-fp-math | FileCheck -check-prefix=FINITE %s
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; RUN: llc < %s -march=arm -mcpu=cortex-a8 -mattr=+vfp2 -enable-unsafe-fp-math | FileCheck -check-prefix=NAN %s
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; rdar://7461510
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define arm_apcscc i32 @t1(float* %a, float* %b) nounwind {
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entry:
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; FINITE: t1:
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; FINITE-NOT: vldr
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; FINITE: ldr
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; FINITE: ldr
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; FINITE: cmp r0, r1
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; FINITE-NOT: vcmpe.f32
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; FINITE-NOT: vmrs
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; FINITE: beq
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; NAN: t1:
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; NAN: vldr.32 s0,
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; NAN: vldr.32 s1,
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; NAN: vcmpe.f32 s1, s0
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; NAN: vmrs apsr_nzcv, fpscr
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; NAN: beq
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%0 = load float* %a
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%1 = load float* %b
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%2 = fcmp une float %0, %1
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br i1 %2, label %bb1, label %bb2
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bb1:
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%3 = call i32 @bar()
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ret i32 %3
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bb2:
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%4 = call i32 @foo()
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ret i32 %4
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}
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define arm_apcscc i32 @t2(double* %a, double* %b) nounwind {
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entry:
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; FINITE: t2:
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; FINITE-NOT: vldr
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; FINITE: ldrd r0, [r0]
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; FINITE-NOT: b LBB
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; FINITE: cmp r0, #0
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; FINITE: cmpeq r1, #0
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; FINITE-NOT: vcmpe.f32
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; FINITE-NOT: vmrs
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; FINITE: bne
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%0 = load double* %a
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%1 = fcmp oeq double %0, 0.000000e+00
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br i1 %1, label %bb1, label %bb2
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bb1:
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%2 = call i32 @bar()
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ret i32 %2
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bb2:
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%3 = call i32 @foo()
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ret i32 %3
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}
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define arm_apcscc i32 @t3(float* %a, float* %b) nounwind {
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entry:
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; FINITE: t3:
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; FINITE-NOT: vldr
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; FINITE: ldr r0, [r0]
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; FINITE: cmp r0, #0
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; FINITE-NOT: vcmpe.f32
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; FINITE-NOT: vmrs
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; FINITE: bne
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%0 = load float* %a
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%1 = fcmp oeq float %0, 0.000000e+00
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br i1 %1, label %bb1, label %bb2
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bb1:
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%2 = call i32 @bar()
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ret i32 %2
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bb2:
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%3 = call i32 @foo()
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ret i32 %3
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}
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declare i32 @bar()
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declare i32 @foo()
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