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				https://github.com/c64scene-ar/llvm-6502.git
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	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213374 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			70 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			70 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
; RUN: llc < %s -march=x86-64 -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -mattr=-f16c | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-LIBCALL
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; RUN: llc < %s -march=x86-64 -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -mattr=+f16c | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-F16C
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define void @test_load_store(half* %in, half* %out) {
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; CHECK-LABEL: test_load_store:
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; CHECK: movw (%rdi), [[TMP:%[a-z0-9]+]]
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; CHECK: movw [[TMP]], (%rsi)
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  %val = load half* %in
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  store half %val, half* %out
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  ret void
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}
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define i16 @test_bitcast_from_half(half* %addr) {
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; CHECK-LABEL: test_bitcast_from_half:
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; CHECK: movzwl (%rdi), %eax
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  %val = load half* %addr
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  %val_int = bitcast half %val to i16
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  ret i16 %val_int
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}
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define void @test_bitcast_to_half(half* %addr, i16 %in) {
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; CHECK-LABEL: test_bitcast_to_half:
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; CHECK: movw %si, (%rdi)
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  %val_fp = bitcast i16 %in to half
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  store half %val_fp, half* %addr
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  ret void
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}
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define float @test_extend32(half* %addr) {
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; CHECK-LABEL: test_extend32:
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; CHECK-LIBCALL: jmp __gnu_h2f_ieee
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; CHECK-FP16: vcvtph2ps
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  %val16 = load half* %addr
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  %val32 = fpext half %val16 to float
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  ret float %val32
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}
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define double @test_extend64(half* %addr) {
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; CHECK-LABEL: test_extend64:
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; CHECK-LIBCALL: callq __gnu_h2f_ieee
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; CHECK-LIBCALL: cvtss2sd
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; CHECK-FP16: vcvtph2ps
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; CHECK-FP16: vcvtss2sd
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  %val16 = load half* %addr
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  %val32 = fpext half %val16 to double
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  ret double %val32
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}
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define void @test_trunc32(float %in, half* %addr) {
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; CHECK-LABEL: test_trunc32:
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; CHECK-LIBCALL: callq __gnu_f2h_ieee
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; CHECK-FP16: vcvtps2ph
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  %val16 = fptrunc float %in to half
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  store half %val16, half* %addr
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  ret void
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}
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define void @test_trunc64(double %in, half* %addr) {
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; CHECK-LABEL: test_trunc64:
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; CHECK-LIBCALL: callq __truncdfhf2
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; CHECK-FP16: callq __truncdfhf2
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  %val16 = fptrunc double %in to half
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  store half %val16, half* %addr
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  ret void
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}
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