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https://github.com/c64scene-ar/llvm-6502.git
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cb2ff33a8a
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228836 91177308-0d34-0410-b5e6-96231b3b80d8
76 lines
2.3 KiB
LLVM
76 lines
2.3 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx | FileCheck %s
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define <2 x double> @fabs_v2f64(<2 x double> %p)
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{
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; CHECK-LABEL: fabs_v2f64
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; CHECK: vandps
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%t = call <2 x double> @llvm.fabs.v2f64(<2 x double> %p)
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ret <2 x double> %t
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}
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declare <2 x double> @llvm.fabs.v2f64(<2 x double> %p)
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define <4 x float> @fabs_v4f32(<4 x float> %p)
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{
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; CHECK-LABEL: fabs_v4f32
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; CHECK: vandps
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%t = call <4 x float> @llvm.fabs.v4f32(<4 x float> %p)
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ret <4 x float> %t
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}
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declare <4 x float> @llvm.fabs.v4f32(<4 x float> %p)
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define <4 x double> @fabs_v4f64(<4 x double> %p)
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{
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; CHECK-LABEL: fabs_v4f64
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; CHECK: vandps
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%t = call <4 x double> @llvm.fabs.v4f64(<4 x double> %p)
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ret <4 x double> %t
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}
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declare <4 x double> @llvm.fabs.v4f64(<4 x double> %p)
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define <8 x float> @fabs_v8f32(<8 x float> %p)
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{
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; CHECK-LABEL: fabs_v8f32
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; CHECK: vandps
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%t = call <8 x float> @llvm.fabs.v8f32(<8 x float> %p)
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ret <8 x float> %t
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}
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declare <8 x float> @llvm.fabs.v8f32(<8 x float> %p)
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; PR20354: when generating code for a vector fabs op,
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; make sure that we're only turning off the sign bit of each float value.
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; No constant pool loads or vector ops are needed for the fabs of a
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; bitcasted integer constant; we should just return an integer constant
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; that has the sign bits turned off.
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;
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; So instead of something like this:
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; movabsq (constant pool load of mask for sign bits)
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; vmovq (move from integer register to vector/fp register)
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; vandps (mask off sign bits)
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; vmovq (move vector/fp register back to integer return register)
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;
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; We should generate:
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; mov (put constant value in return register)
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define i64 @fabs_v2f32_1() {
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; CHECK-LABEL: fabs_v2f32_1:
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; CHECK: movabsq $9223372032559808512, %rax # imm = 0x7FFFFFFF00000000
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; CHECK-NEXT: retq
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%bitcast = bitcast i64 18446744069414584320 to <2 x float> ; 0xFFFF_FFFF_0000_0000
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%fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %bitcast)
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%ret = bitcast <2 x float> %fabs to i64
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ret i64 %ret
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}
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define i64 @fabs_v2f32_2() {
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; CHECK-LABEL: fabs_v2f32_2:
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; CHECK: movl $2147483647, %eax # imm = 0x7FFFFFFF
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; CHECK-NEXT: retq
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%bitcast = bitcast i64 4294967295 to <2 x float> ; 0x0000_0000_FFFF_FFFF
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%fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %bitcast)
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%ret = bitcast <2 x float> %fabs to i64
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ret i64 %ret
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}
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declare <2 x float> @llvm.fabs.v2f32(<2 x float> %p)
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