mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
5a70dd1d82
Similar to gep (r230786) and load (r230794) changes.
Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.
(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)
import fileinput
import sys
import re
rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)
def conv(match):
line = match.group(1)
line += match.group(4)
line += ", "
line += match.group(2)
return line
line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
sys.stdout.write(line[off:match.start()])
sys.stdout.write(conv(match))
off = match.end()
sys.stdout.write(line[off:])
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
405 lines
12 KiB
LLVM
405 lines
12 KiB
LLVM
; RUN: llc < %s -mcpu=generic -mtriple=i386-apple-darwin -no-integrated-as | FileCheck %s
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; There should be no stack manipulations between the inline asm and ret.
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; CHECK: test1
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; CHECK: InlineAsm End
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; CHECK-NEXT: ret
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define x86_fp80 @test1() {
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%tmp85 = call x86_fp80 asm sideeffect "fld0", "={st(0)}"()
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ret x86_fp80 %tmp85
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}
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; CHECK: test2
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; CHECK: InlineAsm End
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; CHECK-NEXT: ret
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define double @test2() {
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%tmp85 = call double asm sideeffect "fld0", "={st(0)}"()
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ret double %tmp85
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}
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; Setting up argument in st(0) should be a single fld.
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; CHECK: test3
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; CHECK: fld
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; CHECK-NEXT: InlineAsm Start
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; Asm consumes stack, nothing should be popped.
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; CHECK: InlineAsm End
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; CHECK-NOT: fstp
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; CHECK: ret
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define void @test3(x86_fp80 %X) {
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call void asm sideeffect "frob ", "{st(0)},~{st},~{dirflag},~{fpsr},~{flags}"( x86_fp80 %X)
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ret void
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}
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; CHECK: test4
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; CHECK: fld
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; CHECK-NEXT: InlineAsm Start
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; CHECK: InlineAsm End
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; CHECK-NOT: fstp
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; CHECK: ret
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define void @test4(double %X) {
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call void asm sideeffect "frob ", "{st(0)},~{st},~{dirflag},~{fpsr},~{flags}"( double %X)
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ret void
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}
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; Same as test3/4, but using value from fadd.
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; The fadd can be done in xmm or x87 regs - we don't test that.
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; CHECK: test5
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; CHECK: InlineAsm End
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; CHECK-NOT: fstp
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; CHECK: ret
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define void @test5(double %X) {
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%Y = fadd double %X, 123.0
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call void asm sideeffect "frob ", "{st(0)},~{st},~{dirflag},~{fpsr},~{flags}"( double %Y)
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ret void
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}
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; CHECK: test6
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define void @test6(double %A, double %B, double %C,
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double %D, double %E) nounwind {
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entry:
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; Uses the same value twice, should have one fstp after the asm.
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; CHECK: foo
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; CHECK: InlineAsm End
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; CHECK-NEXT: fstp
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; CHECK-NOT: fstp
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tail call void asm sideeffect "foo $0 $1", "f,f,~{dirflag},~{fpsr},~{flags}"( double %A, double %A ) nounwind
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; Uses two different values, should be in st(0)/st(1) and both be popped.
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; CHECK: bar
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; CHECK: InlineAsm End
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; CHECK-NEXT: fstp
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; CHECK-NEXT: fstp
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tail call void asm sideeffect "bar $0 $1", "f,f,~{dirflag},~{fpsr},~{flags}"( double %B, double %C ) nounwind
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; Uses two different values, one of which isn't killed in this asm, it
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; should not be popped after the asm.
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; CHECK: baz
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; CHECK: InlineAsm End
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; CHECK-NEXT: fstp
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; CHECK-NOT: fstp
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tail call void asm sideeffect "baz $0 $1", "f,f,~{dirflag},~{fpsr},~{flags}"( double %D, double %E ) nounwind
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; This is the last use of %D, so it should be popped after.
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; CHECK: baz
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; CHECK: InlineAsm End
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; CHECK-NEXT: fstp
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; CHECK-NOT: fstp
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; CHECK: ret
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tail call void asm sideeffect "baz $0", "f,~{dirflag},~{fpsr},~{flags}"( double %D ) nounwind
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ret void
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}
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; PR4185
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; Passing a non-killed value to asm in {st}.
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; Make sure it is duped before.
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; asm kills st(0), so we shouldn't pop anything
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; CHECK: testPR4185
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; CHECK: fld %st(0)
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; CHECK: fistpl
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; CHECK-NOT: fstp
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; CHECK: fistpl
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; CHECK-NOT: fstp
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; CHECK: ret
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; A valid alternative would be to remat the constant pool load before each
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; inline asm.
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define void @testPR4185() {
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return:
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call void asm sideeffect "fistpl $0", "{st},~{st}"(double 1.000000e+06)
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call void asm sideeffect "fistpl $0", "{st},~{st}"(double 1.000000e+06)
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ret void
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}
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; Passing a non-killed value through asm in {st}.
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; Make sure it is not duped before.
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; Second asm kills st(0), so we shouldn't pop anything
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; CHECK: testPR4185b
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; CHECK-NOT: fld %st(0)
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; CHECK: fistl
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; CHECK-NOT: fstp
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; CHECK: fistpl
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; CHECK-NOT: fstp
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; CHECK: ret
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; A valid alternative would be to remat the constant pool load before each
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; inline asm.
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define void @testPR4185b() {
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return:
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call void asm sideeffect "fistl $0", "{st}"(double 1.000000e+06)
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call void asm sideeffect "fistpl $0", "{st},~{st}"(double 1.000000e+06)
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ret void
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}
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; PR4459
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; The return value from ceil must be duped before being consumed by asm.
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; CHECK: testPR4459
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; CHECK: ceil
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; CHECK: fld %st(0)
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; CHECK-NOT: fxch
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; CHECK: fistpl
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; CHECK-NOT: fxch
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; CHECK: fstpt
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; CHECK: test
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define void @testPR4459(x86_fp80 %a) {
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entry:
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%0 = call x86_fp80 @ceil(x86_fp80 %a)
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call void asm sideeffect "fistpl $0", "{st},~{st}"( x86_fp80 %0)
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call void @test3(x86_fp80 %0 )
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ret void
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}
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declare x86_fp80 @ceil(x86_fp80)
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; PR4484
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; test1 leaves a value on the stack that is needed after the asm.
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; CHECK: testPR4484
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; CHECK: calll _test1
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; CHECK-NOT: fstp
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; Load %a from stack after ceil
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; CHECK: fldt
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; CHECK-NOT: fxch
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; CHECK: fistpl
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; CHECK-NOT: fstp
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; Set up call to test.
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; CHECK: fstpt
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; CHECK: test
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define void @testPR4484(x86_fp80 %a) {
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entry:
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%0 = call x86_fp80 @test1()
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call void asm sideeffect "fistpl $0", "{st},~{st}"(x86_fp80 %a)
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call void @test3(x86_fp80 %0)
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ret void
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}
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; PR4485
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; CHECK: testPR4485
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define void @testPR4485(x86_fp80* %a) {
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entry:
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%0 = load x86_fp80, x86_fp80* %a, align 16
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%1 = fmul x86_fp80 %0, 0xK4006B400000000000000
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%2 = fmul x86_fp80 %1, 0xK4012F424000000000000
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tail call void asm sideeffect "fistpl $0", "{st},~{st}"(x86_fp80 %2)
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%3 = load x86_fp80, x86_fp80* %a, align 16
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%4 = fmul x86_fp80 %3, 0xK4006B400000000000000
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%5 = fmul x86_fp80 %4, 0xK4012F424000000000000
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tail call void asm sideeffect "fistpl $0", "{st},~{st}"(x86_fp80 %5)
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ret void
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}
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; An input argument in a fixed position is implicitly popped by the asm only if
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; the input argument is tied to an output register, or it is in the clobber list.
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; The clobber list case is tested above.
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;
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; This doesn't implicitly pop the stack:
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;
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; void fist1(long double x, int *p) {
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; asm volatile ("fistl %1" : : "t"(x), "m"(*p));
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; }
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;
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; CHECK: fist1
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; CHECK: fldt
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; CHECK: fistl (%e
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; CHECK: fstp
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; CHECK: ret
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define void @fist1(x86_fp80 %x, i32* %p) nounwind ssp {
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entry:
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tail call void asm sideeffect "fistl $1", "{st},*m,~{memory},~{dirflag},~{fpsr},~{flags}"(x86_fp80 %x, i32* %p) nounwind
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ret void
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}
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; Here, the input operand is tied to an output which means that is is
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; implicitly popped (and then the output is implicitly pushed).
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;
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; long double fist2(long double x, int *p) {
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; long double y;
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; asm ("fistl %1" : "=&t"(y) : "0"(x), "m"(*p) : "memory");
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; return y;
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; }
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;
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; CHECK: fist2
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; CHECK: fldt
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; CHECK: fistl (%e
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; CHECK-NOT: fstp
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; CHECK: ret
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define x86_fp80 @fist2(x86_fp80 %x, i32* %p) nounwind ssp {
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entry:
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%0 = tail call x86_fp80 asm "fistl $2", "=&{st},0,*m,~{memory},~{dirflag},~{fpsr},~{flags}"(x86_fp80 %x, i32* %p) nounwind
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ret x86_fp80 %0
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}
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; An 'f' constraint is never implicitly popped:
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;
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; void fucomp1(long double x, long double y) {
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; asm volatile ("fucomp %1" : : "t"(x), "f"(y) : "st");
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; }
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; CHECK: fucomp1
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; CHECK: fldt
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; CHECK: fldt
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; CHECK: fucomp %st
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; CHECK: fstp
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; CHECK-NOT: fstp
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; CHECK: ret
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define void @fucomp1(x86_fp80 %x, x86_fp80 %y) nounwind ssp {
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entry:
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tail call void asm sideeffect "fucomp $1", "{st},f,~{st},~{dirflag},~{fpsr},~{flags}"(x86_fp80 %x, x86_fp80 %y) nounwind
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ret void
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}
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; The 'u' constraint is only popped implicitly when clobbered:
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;
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; void fucomp2(long double x, long double y) {
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; asm volatile ("fucomp %1" : : "t"(x), "u"(y) : "st");
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; }
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;
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; void fucomp3(long double x, long double y) {
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; asm volatile ("fucompp %1" : : "t"(x), "u"(y) : "st", "st(1)");
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; }
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;
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; CHECK: fucomp2
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; CHECK: fldt
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; CHECK: fldt
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; CHECK: fucomp %st(1)
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; CHECK: fstp
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; CHECK-NOT: fstp
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; CHECK: ret
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;
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; CHECK: fucomp3
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; CHECK: fldt
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; CHECK: fldt
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; CHECK: fucompp %st(1)
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; CHECK-NOT: fstp
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; CHECK: ret
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define void @fucomp2(x86_fp80 %x, x86_fp80 %y) nounwind ssp {
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entry:
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tail call void asm sideeffect "fucomp $1", "{st},{st(1)},~{st},~{dirflag},~{fpsr},~{flags}"(x86_fp80 %x, x86_fp80 %y) nounwind
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ret void
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}
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define void @fucomp3(x86_fp80 %x, x86_fp80 %y) nounwind ssp {
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entry:
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tail call void asm sideeffect "fucompp $1", "{st},{st(1)},~{st},~{st(1)},~{dirflag},~{fpsr},~{flags}"(x86_fp80 %x, x86_fp80 %y) nounwind
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ret void
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}
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; One input, two outputs, one dead output.
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%complex = type { float, float }
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; CHECK: sincos1
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; CHECK: flds
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; CHECK-NOT: fxch
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; CHECK: sincos
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; CHECK-NOT: fstp
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; CHECK: fstp %st(1)
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; CHECK-NOT: fstp
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; CHECK: ret
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define float @sincos1(float %x) nounwind ssp {
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entry:
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%0 = tail call %complex asm "sincos", "={st},={st(1)},0,~{dirflag},~{fpsr},~{flags}"(float %x) nounwind
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%asmresult = extractvalue %complex %0, 0
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ret float %asmresult
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}
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; Same thing, swapped output operands.
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; CHECK: sincos2
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; CHECK: flds
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; CHECK-NOT: fxch
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; CHECK: sincos
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; CHECK-NOT: fstp
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; CHECK: fstp %st(1)
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; CHECK-NOT: fstp
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; CHECK: ret
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define float @sincos2(float %x) nounwind ssp {
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entry:
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%0 = tail call %complex asm "sincos", "={st(1)},={st},1,~{dirflag},~{fpsr},~{flags}"(float %x) nounwind
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%asmresult = extractvalue %complex %0, 1
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ret float %asmresult
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}
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; Clobber st(0) after it was live-out/dead from the previous asm.
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; CHECK: sincos3
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; Load x, make a copy for the second asm.
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; CHECK: flds
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; CHECK: fld %st(0)
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; CHECK: sincos
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; Discard dead result in st(0), bring x to the top.
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; CHECK: fstp %st(0)
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; CHECK: fxch
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; x is now in st(0) for the second asm
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; CHECK: sincos
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; Discard both results.
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; CHECK: fstp
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; CHECK: fstp
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; CHECK: ret
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define float @sincos3(float %x) nounwind ssp {
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entry:
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%0 = tail call %complex asm sideeffect "sincos", "={st(1)},={st},1,~{dirflag},~{fpsr},~{flags}"(float %x) nounwind
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%1 = tail call %complex asm sideeffect "sincos", "={st(1)},={st},1,~{dirflag},~{fpsr},~{flags}"(float %x) nounwind
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%asmresult = extractvalue %complex %0, 0
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ret float %asmresult
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}
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; Pass the same value in two fixed stack slots.
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; CHECK: PR10602
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; CHECK: flds LCPI
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; CHECK: fld %st(0)
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; CHECK: fcomi %st(1), %st(0)
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define i32 @PR10602() nounwind ssp {
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entry:
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%0 = tail call i32 asm "fcomi $2, $1; pushf; pop $0", "=r,{st},{st(1)},~{dirflag},~{fpsr},~{flags}"(double 2.000000e+00, double 2.000000e+00) nounwind
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ret i32 %0
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}
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; <rdar://problem/16952634>
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; X87 stackifier asserted when there was an ST register defined by an
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; inline-asm instruction and the ST register was live across another
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; inline-asm instruction.
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;
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; INLINEASM <es:frndint> [sideeffect] [attdialect], $0:[regdef], %ST0<imp-def,tied5>, $1:[reguse tiedto:$0], %ST0<tied3>, $2:[clobber], %EFLAGS<earlyclobber,imp-def,dead>
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; INLINEASM <es:fldcw $0> [sideeffect] [mayload] [attdialect], $0:[mem], %EAX<undef>, 1, %noreg, 0, %noreg, $1:[clobber], %EFLAGS<earlyclobber,imp-def,dead>
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; %FP0<def> = COPY %ST0
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; CHECK-LABEL: _test_live_st
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; CHECK: ## InlineAsm Start
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; CHECK: frndint
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; CHECK: ## InlineAsm End
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; CHECK: ## InlineAsm Start
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; CHECK: fldcw
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; CHECK: ## InlineAsm End
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%struct.fpu_t = type { [8 x x86_fp80], x86_fp80, %struct.anon1, %struct.anon2, i32, i8, [15 x i8] }
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%struct.anon1 = type { i32, i32, i32 }
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%struct.anon2 = type { i32, i32, i32, i32 }
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@fpu = external global %struct.fpu_t, align 16
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; Function Attrs: ssp
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define void @test_live_st(i32 %a1) {
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entry:
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%0 = load x86_fp80, x86_fp80* undef, align 16
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%cond = icmp eq i32 %a1, 1
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br i1 %cond, label %sw.bb4.i, label %_Z5tointRKe.exit
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sw.bb4.i:
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%1 = call x86_fp80 asm sideeffect "frndint", "={st},0,~{dirflag},~{fpsr},~{flags}"(x86_fp80 %0)
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call void asm sideeffect "fldcw $0", "*m,~{dirflag},~{fpsr},~{flags}"(i32* undef)
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br label %_Z5tointRKe.exit
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_Z5tointRKe.exit:
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%result.0.i = phi x86_fp80 [ %1, %sw.bb4.i ], [ %0, %entry ]
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%conv.i1814 = fptosi x86_fp80 %result.0.i to i32
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%conv626 = sitofp i32 %conv.i1814 to x86_fp80
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store x86_fp80 %conv626, x86_fp80* getelementptr inbounds (%struct.fpu_t, %struct.fpu_t* @fpu, i32 0, i32 1)
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br label %return
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return:
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ret void
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}
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; Check that x87 stackifier is correctly rewriting FP registers to ST registers.
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;
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; CHECK-LABEL: _test_operand_rewrite
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; CHECK: ## InlineAsm Start
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; CHECK: foo %st(0), %st(1)
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; CHECK: ## InlineAsm End
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define double @test_operand_rewrite() {
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entry:
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%0 = tail call { double, double } asm sideeffect "foo $0, $1", "={st},={st(1)},~{dirflag},~{fpsr},~{flags}"()
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%asmresult = extractvalue { double, double } %0, 0
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%asmresult1 = extractvalue { double, double } %0, 1
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%sub = fsub double %asmresult, %asmresult1
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ret double %sub
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}
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