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llvm-project/clang/test/CodeGen/mozilla-ms-inline-asm.c

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Upstream an MS inline assembly test from Mozilla's inline assembly code Summary: I'm planning on upstreaming some test cases for the inline assembly usage in the Mozilla code base. A lot of these test cases test the recent fixes to this code. Reviewers: rnk Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D4508 llvm-svn: 213255
2014-07-17 19:38:22 +08:00
// REQUIRES: x86-registered-target
// RUN: %clang_cc1 %s -triple i386-apple-darwin10 -fasm-blocks -emit-llvm -o - | opt -strip -S | FileCheck %s
// Some test cases for MS inline asm support from Mozilla code base.
ms-inline-asm: Scope inline asm labels to functions Summary: This fixes PR20023. In order to implement this scoping rule, we piggy back on the existing LabelDecl machinery, by creating LabelDecl's that will carry the "internal" name of the inline assembly label, which we will rewrite the asm label to. Reviewers: rnk Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D4589 llvm-svn: 218230
2014-09-22 10:21:54 +08:00
void invoke_copy_to_stack() {}
Upstream an MS inline assembly test from Mozilla's inline assembly code Summary: I'm planning on upstreaming some test cases for the inline assembly usage in the Mozilla code base. A lot of these test cases test the recent fixes to this code. Reviewers: rnk Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D4508 llvm-svn: 213255
2014-07-17 19:38:22 +08:00
void invoke(void* that, unsigned methodIndex,
unsigned paramCount, void* params)
{
// CHECK: @invoke
// CHECK: %5 = alloca i8*, align 4
// CHECK: %6 = alloca i32, align 4
// CHECK: %7 = alloca i32, align 4
// CHECK: %8 = alloca i8*, align 4
// CHECK: store i8* %0, i8** %5, align 4
// CHECK: store i32 %1, i32* %6, align 4
// CHECK: store i32 %2, i32* %7, align 4
// CHECK: store i8* %3, i8** %8, align 4
// CHECK: call void asm sideeffect inteldialect
[ms-inline-asm] Use the frontend size only for ambiguous instructions This avoids problems on code like this: char buf[16]; __asm { movups xmm0, [buf] mov [buf], eax } The frontend size in this case (1) is wrong, and the register makes the instruction matching unambiguous. There are also enough bytes available that we shouldn't complain to the user that they are potentially using an incorrectly sized instruction to access the variable. Supersedes D32636 and D26586 and fixes PR28266 llvm-svn: 302179
2017-05-05 02:19:52 +08:00
// CHECK-SAME: mov edx,$1
// CHECK-SAME: test edx,edx
// CHECK-SAME: jz {{[^_]*}}__MSASMLABEL_.${:uid}__noparams
// ^ Can't use {{.*}} here because the matching is greedy.
// CHECK-SAME: mov eax,edx
// CHECK-SAME: shl eax,$$3
// CHECK-SAME: sub esp,eax
// CHECK-SAME: mov ecx,esp
// CHECK-SAME: push $0
// CHECK-SAME: call dword ptr $2
// CHECK-SAME: {{.*}}__MSASMLABEL_.${:uid}__noparams:
// CHECK-SAME: mov ecx,$3
// CHECK-SAME: push ecx
// CHECK-SAME: mov edx,[ecx]
// CHECK-SAME: mov eax,$4
Fixups to FE tests affected by D36793 Differential Revision: https://reviews.llvm.org/D36794 llvm-svn: 311640
2017-08-24 16:47:26 +08:00
// CHECK-SAME: call dword ptr[edx + eax * $$4]
[ms-inline-asm] Use the frontend size only for ambiguous instructions This avoids problems on code like this: char buf[16]; __asm { movups xmm0, [buf] mov [buf], eax } The frontend size in this case (1) is wrong, and the register makes the instruction matching unambiguous. There are also enough bytes available that we shouldn't complain to the user that they are potentially using an incorrectly sized instruction to access the variable. Supersedes D32636 and D26586 and fixes PR28266 llvm-svn: 302179
2017-05-05 02:19:52 +08:00
// CHECK-SAME: mov esp,ebp
// CHECK-SAME: pop ebp
// CHECK-SAME: ret
ms-inline-asm: Scope inline asm labels to functions Summary: This fixes PR20023. In order to implement this scoping rule, we piggy back on the existing LabelDecl machinery, by creating LabelDecl's that will carry the "internal" name of the inline assembly label, which we will rewrite the asm label to. Reviewers: rnk Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D4589 llvm-svn: 218230
2014-09-22 10:21:54 +08:00
// CHECK: "=*m,*m,*m,*m,*m,~{eax},~{ebp},~{ecx},~{edx},~{flags},~{esp},~{dirflag},~{fpsr},~{flags}"
// CHECK: (i8** %8, i32* %7, void (...)* bitcast (void ()* @invoke_copy_to_stack to void (...)*), i8** %5, i32* %6)
Upstream an MS inline assembly test from Mozilla's inline assembly code Summary: I'm planning on upstreaming some test cases for the inline assembly usage in the Mozilla code base. A lot of these test cases test the recent fixes to this code. Reviewers: rnk Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D4508 llvm-svn: 213255
2014-07-17 19:38:22 +08:00
// CHECK: ret void
__asm {
mov edx,paramCount
test edx,edx
jz noparams
mov eax,edx
shl eax,3
sub esp,eax
mov ecx,esp
push params
call invoke_copy_to_stack
noparams:
mov ecx,that
push ecx
mov edx,[ecx]
mov eax,methodIndex
call dword ptr[edx+eax*4]
mov esp,ebp
pop ebp
ret
}
}