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llvm/test/CodeGen/X86/avx-intel-ocl.ll
Hans Wennborg b667d698ac [X86] Enable call frame optimization ("mov to push") not only for optsize (PR26325) 
The size savings are significant, and from what I can tell, both ICC and GCC do this.

Differential Revision: http://reviews.llvm.org/D18573

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264966 91177308-0d34-0410-b5e6-96231b3b80d8
2016-03-30 23:38:01 +00:00

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LLVM
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; RUN: llc < %s -mtriple=i686-apple-darwin -mattr=+avx | FileCheck -check-prefix=X32 %s
; RUN: llc < %s -mtriple=i386-pc-win32 -mattr=+avx | FileCheck -check-prefix=X32 %s
; RUN: llc < %s -mtriple=x86_64-win32 -mattr=+avx | FileCheck -check-prefix=WIN64 %s
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+avx | FileCheck -check-prefix=X64 %s
declare <16 x float> @func_float16_ptr(<16 x float>, <16 x float> *)
declare <16 x float> @func_float16(<16 x float>, <16 x float>)
declare i32 @func_int(i32, i32)
; WIN64-LABEL: testf16_inp
; WIN64: vaddps {{.*}}, {{%ymm[0-1]}}
; WIN64: vaddps {{.*}}, {{%ymm[0-1]}}
; WIN64: leaq {{.*}}(%rsp), %rcx
; WIN64: call
; WIN64: ret
; X32-LABEL: testf16_inp
; X32: vaddps {{.*}}, {{%ymm[0-1]}}
; X32: vaddps {{.*}}, {{%ymm[0-1]}}
; Push is not deemed profitable if we're realigning the stack.
; X32: {{pushl|movl}} %eax
; X32: call
; X32: ret
; X64-LABEL: testf16_inp
; X64: vaddps {{.*}}, {{%ymm[0-1]}}
; X64: vaddps {{.*}}, {{%ymm[0-1]}}
; X64: leaq {{.*}}(%rsp), %rdi
; X64: call
; X64: ret
;test calling conventions - input parameters
define <16 x float> @testf16_inp(<16 x float> %a, <16 x float> %b) nounwind {
%y = alloca <16 x float>, align 16
%x = fadd <16 x float> %a, %b
%1 = call intel_ocl_bicc <16 x float> @func_float16_ptr(<16 x float> %x, <16 x float>* %y)
%2 = load <16 x float>, <16 x float>* %y, align 16
%3 = fadd <16 x float> %2, %1
ret <16 x float> %3
}
;test calling conventions - preserved registers
; preserved ymm6-ymm15
; WIN64-LABEL: testf16_regs
; WIN64: call
; WIN64: vaddps {{%ymm[6-7]}}, {{%ymm[0-1]}}, {{%ymm[0-1]}}
; WIN64: vaddps {{%ymm[6-7]}}, {{%ymm[0-1]}}, {{%ymm[0-1]}}
; WIN64: ret
; preserved ymm8-ymm15
; X64-LABEL: testf16_regs
; X64: call
; X64: vaddps {{%ymm[8-9]}}, {{%ymm[0-1]}}, {{%ymm[0-1]}}
; X64: vaddps {{%ymm[8-9]}}, {{%ymm[0-1]}}, {{%ymm[0-1]}}
; X64: ret
define <16 x float> @testf16_regs(<16 x float> %a, <16 x float> %b) nounwind {
%y = alloca <16 x float>, align 16
%x = fadd <16 x float> %a, %b
%1 = call intel_ocl_bicc <16 x float> @func_float16_ptr(<16 x float> %x, <16 x float>* %y)
%2 = load <16 x float>, <16 x float>* %y, align 16
%3 = fadd <16 x float> %1, %b
%4 = fadd <16 x float> %2, %3
ret <16 x float> %4
}
; test calling conventions - prolog and epilog
; WIN64-LABEL: test_prolog_epilog
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: vmovaps {{%ymm([6-9]|1[0-5])}}, {{.*(%rbp).*}} # 32-byte Spill
; WIN64: call
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; WIN64: vmovaps {{.*(%rbp).*}}, {{%ymm([6-9]|1[0-5])}} # 32-byte Reload
; X64-LABEL: test_prolog_epilog
; X64: vmovups {{%ymm([8-9]|1[0-5])}}, {{.*}}(%rsp) ## 32-byte Spill
; X64: vmovups {{%ymm([8-9]|1[0-5])}}, {{.*}}(%rsp) ## 32-byte Spill
; X64: vmovups {{%ymm([8-9]|1[0-5])}}, {{.*}}(%rsp) ## 32-byte Spill
; X64: vmovups {{%ymm([8-9]|1[0-5])}}, {{.*}}(%rsp) ## 32-byte Spill
; X64: vmovups {{%ymm([8-9]|1[0-5])}}, {{.*}}(%rsp) ## 32-byte Spill
; X64: vmovups {{%ymm([8-9]|1[0-5])}}, {{.*}}(%rsp) ## 32-byte Spill
; X64: vmovups {{%ymm([8-9]|1[0-5])}}, {{.*}}(%rsp) ## 32-byte Spill
; X64: vmovups {{%ymm([8-9]|1[0-5])}}, {{.*}}(%rsp) ## 32-byte Spill
; X64: call
; X64: vmovups {{.*}}(%rsp), {{%ymm([8-9]|1[0-5])}} ## 32-byte Reload
; X64: vmovups {{.*}}(%rsp), {{%ymm([8-9]|1[0-5])}} ## 32-byte Reload
; X64: vmovups {{.*}}(%rsp), {{%ymm([8-9]|1[0-5])}} ## 32-byte Reload
; X64: vmovups {{.*}}(%rsp), {{%ymm([8-9]|1[0-5])}} ## 32-byte Reload
; X64: vmovups {{.*}}(%rsp), {{%ymm([8-9]|1[0-5])}} ## 32-byte Reload
; X64: vmovups {{.*}}(%rsp), {{%ymm([8-9]|1[0-5])}} ## 32-byte Reload
; X64: vmovups {{.*}}(%rsp), {{%ymm([8-9]|1[0-5])}} ## 32-byte Reload
; X64: vmovups {{.*}}(%rsp), {{%ymm([8-9]|1[0-5])}} ## 32-byte Reload
define intel_ocl_bicc <16 x float> @test_prolog_epilog(<16 x float> %a, <16 x float> %b) nounwind {
%c = call <16 x float> @func_float16(<16 x float> %a, <16 x float> %b)
ret <16 x float> %c
}
; test functions with integer parameters
; pass parameters on stack for 32-bit platform
; X32-LABEL: test_int
; X32: pushl {{.*}}
; X32: pushl {{.*}}
; X32: call
; X32: addl {{.*}}, %eax
; pass parameters in registers for 64-bit platform
; X64-LABEL: test_int
; X64: leal {{.*}}, %edi
; X64: movl {{.*}}, %esi
; X64: call
; X64: addl {{.*}}, %eax
define i32 @test_int(i32 %a, i32 %b) nounwind {
%c1 = add i32 %a, %b
%c2 = call intel_ocl_bicc i32 @func_int(i32 %c1, i32 %a)
%c = add i32 %c2, %b
ret i32 %c
}
; WIN64-LABEL: test_float4
; WIN64-NOT: vzeroupper
; WIN64: call
; WIN64-NOT: vzeroupper
; WIN64: call
; WIN64: ret
; X64-LABEL: test_float4
; X64-NOT: vzeroupper
; X64: call
; X64-NOT: vzeroupper
; X64: call
; X64: ret
; X32-LABEL: test_float4
; X32: vzeroupper
; X32: call
; X32: vzeroupper
; X32: call
; X32: ret
declare <4 x float> @func_float4(<4 x float>, <4 x float>, <4 x float>)
define <8 x float> @test_float4(<8 x float> %a, <8 x float> %b, <8 x float> %c) nounwind readnone {
entry:
%0 = shufflevector <8 x float> %a, <8 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%1 = shufflevector <8 x float> %b, <8 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%2 = shufflevector <8 x float> %c, <8 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
%call.i = tail call intel_ocl_bicc <4 x float> @func_float4(<4 x float> %0, <4 x float> %1, <4 x float> %2) nounwind
%3 = shufflevector <4 x float> %call.i, <4 x float> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
%4 = shufflevector <8 x float> %a, <8 x float> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%5 = shufflevector <8 x float> %b, <8 x float> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%6 = shufflevector <8 x float> %c, <8 x float> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%call.i2 = tail call intel_ocl_bicc <4 x float> @func_float4(<4 x float> %4, <4 x float> %5, <4 x float> %6) nounwind
%7 = shufflevector <4 x float> %call.i2, <4 x float> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
%8 = shufflevector <8 x float> %3, <8 x float> %7, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11>
ret <8 x float> %8
}
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