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05452859f5
Summary: The fX version of floating-point registers only supports single precision. We need to map the name to dX for doubles and qX for long doubles if we want getRegForInlineAsmConstraint() to be able to pick the correct register class. Reviewers: jyknight, venkatra Reviewed By: jyknight Subscribers: eraman, fedor.sergeev, jrtc27, llvm-commits Differential Revision: https://reviews.llvm.org/D47258 llvm-svn: 333512
42 lines
1.5 KiB
LLVM
42 lines
1.5 KiB
LLVM
; RUN: llc -march=sparcv9 <%s | FileCheck %s
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;; Ensures that inline-asm accepts and uses 'f' and 'e' register constraints.
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; CHECK-LABEL: faddd:
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; CHECK: faddd %f0, %f2, %f0
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define double @faddd(double, double) local_unnamed_addr #2 {
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entry:
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%2 = tail call double asm sideeffect "faddd $1, $2, $0;", "=f,f,e"(double %0, double %1) #7
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ret double %2
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}
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; CHECK-LABEL: faddq:
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; CHECK: faddq %f0, %f4, %f0
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define fp128 @faddq(fp128, fp128) local_unnamed_addr #2 {
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entry:
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%2 = tail call fp128 asm sideeffect "faddq $1, $2, $0;", "=f,f,e"(fp128 %0, fp128 %1) #7
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ret fp128 %2
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}
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;; Ensure that 'e' can indeed go in the high area, and 'f' cannot.
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; CHECK-LABEL: faddd_high:
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; CHECK: fmovd %f2, %f32
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; CHECK: fmovd %f0, %f2
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; CHECK: faddd %f2, %f32, %f2
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define double @faddd_high(double, double) local_unnamed_addr #2 {
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entry:
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%2 = tail call double asm sideeffect "faddd $1, $2, $0;", "=f,f,e,~{d0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7}"(double %0, double %1) #7
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ret double %2
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}
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; CHECK-LABEL: test_constraint_float_reg:
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; CHECK: fadds %f20, %f20, %f20
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; CHECK: faddd %f20, %f20, %f20
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; CHECK: faddq %f40, %f40, %f40
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define void @test_constraint_float_reg() {
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entry:
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tail call void asm sideeffect "fadds $0,$1,$2", "{f20},{f20},{f20}"(float 6.0, float 7.0, float 8.0)
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tail call void asm sideeffect "faddd $0,$1,$2", "{f20},{f20},{f20}"(double 9.0, double 10.0, double 11.0)
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tail call void asm sideeffect "faddq $0,$1,$2", "{f40},{f40},{f40}"(fp128 0xL0, fp128 0xL0, fp128 0xL0)
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ret void
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}
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