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Diffstat (limited to 'test/CodeGen/X86/inline-asm-fpstack.ll')
| -rw-r--r-- | test/CodeGen/X86/inline-asm-fpstack.ll | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/test/CodeGen/X86/inline-asm-fpstack.ll b/test/CodeGen/X86/inline-asm-fpstack.ll new file mode 100644 index 0000000..09b0929 --- /dev/null +++ b/test/CodeGen/X86/inline-asm-fpstack.ll @@ -0,0 +1,43 @@ +; RUN: llc < %s -march=x86 + +define x86_fp80 @test1() { + %tmp85 = call x86_fp80 asm sideeffect "fld0", "={st(0)}"() + ret x86_fp80 %tmp85 +} + +define double @test2() { + %tmp85 = call double asm sideeffect "fld0", "={st(0)}"() + ret double %tmp85 +} + +define void @test3(x86_fp80 %X) { + call void asm sideeffect "frob ", "{st(0)},~{dirflag},~{fpsr},~{flags}"( x86_fp80 %X) + ret void +} + +define void @test4(double %X) { + call void asm sideeffect "frob ", "{st(0)},~{dirflag},~{fpsr},~{flags}"( double %X) + ret void +} + +define void @test5(double %X) { + %Y = fadd double %X, 123.0 + call void asm sideeffect "frob ", "{st(0)},~{dirflag},~{fpsr},~{flags}"( double %Y) + ret void +} + +define void @test6(double %A, double %B, double %C, + double %D, double %E) nounwind { +entry: + ; Uses the same value twice, should have one fstp after the asm. + tail call void asm sideeffect "foo $0 $1", "f,f,~{dirflag},~{fpsr},~{flags}"( double %A, double %A ) nounwind + ; Uses two different values, should be in st(0)/st(1) and both be popped. + tail call void asm sideeffect "bar $0 $1", "f,f,~{dirflag},~{fpsr},~{flags}"( double %B, double %C ) nounwind + ; Uses two different values, one of which isn't killed in this asm, it + ; should not be popped after the asm. + tail call void asm sideeffect "baz $0 $1", "f,f,~{dirflag},~{fpsr},~{flags}"( double %D, double %E ) nounwind + ; This is the last use of %D, so it should be popped after. + tail call void asm sideeffect "baz $0", "f,~{dirflag},~{fpsr},~{flags}"( double %D ) nounwind + ret void +} + |