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| author | Chris Lattner <sabre@nondot.org> | 2008-03-21 05:57:20 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-03-21 05:57:20 +0000 |
| commit | 0353526ed11fc308cf34465e4d14a6cadf8cfb62 (patch) | |
| tree | df1885649fd0d9969d76a4f24276cf0500334041 /test/CodeGen/X86/fp-stack-2results.ll | |
| parent | 41dc0fcb68e7ea5d7c043af2a6303adfdad19c72 (diff) | |
| download | llvm-0353526ed11fc308cf34465e4d14a6cadf8cfb62.tar.gz llvm-0353526ed11fc308cf34465e4d14a6cadf8cfb62.tar.bz2 llvm-0353526ed11fc308cf34465e4d14a6cadf8cfb62.tar.xz | |
Enable support for returning two long-double values in ST(0)/ST(1).
This allows us to compile fp-stack-2results.ll into:
_test:
fldz
fld1
ret
which returns 1 in ST(0) and 0 in ST(1). This is needed for x86-64
_Complex long double.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48632 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/fp-stack-2results.ll')
| -rw-r--r-- | test/CodeGen/X86/fp-stack-2results.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fp-stack-2results.ll b/test/CodeGen/X86/fp-stack-2results.ll new file mode 100644 index 0000000000..b44d3dd511 --- /dev/null +++ b/test/CodeGen/X86/fp-stack-2results.ll @@ -0,0 +1,11 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep fldz +; RUN: llvm-as < %s | llc -march=x86-64 | grep fld1 + +; This is basically this code on x86-64: +; _Complex long double test() { return 1.0; } +define {x86_fp80, x86_fp80} @test() { + %A = fpext double 1.0 to x86_fp80 + %B = fpext double 0.0 to x86_fp80 + ret x86_fp80 %A, x86_fp80 %B +} + |