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| author | Chris Lattner <sabre@nondot.org> | 2007-06-19 00:13:10 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-06-19 00:13:10 +0000 |
| commit | 52387be1e00291a88edc4c2b8a0b5c22478bcd83 (patch) | |
| tree | d009b0c95d6c6a3fbda0df3df4fbd1ca8ffd38ce /lib/Target/X86/X86CallingConv.td | |
| parent | aeeccfc5b240d6ac87e507188f152bb0278b6472 (diff) | |
| download | llvm-52387be1e00291a88edc4c2b8a0b5c22478bcd83.tar.gz llvm-52387be1e00291a88edc4c2b8a0b5c22478bcd83.tar.bz2 llvm-52387be1e00291a88edc4c2b8a0b5c22478bcd83.tar.xz | |
If a function is vararg, never pass inreg arguments in registers. Thanks to
Anton for half of this patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37641 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86CallingConv.td')
| -rw-r--r-- | lib/Target/X86/X86CallingConv.td | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td index f548af75fd..d8942d8c4f 100644 --- a/lib/Target/X86/X86CallingConv.td +++ b/lib/Target/X86/X86CallingConv.td @@ -148,9 +148,9 @@ def CC_X86_32_C : CallingConv<[ // Promote i8/i16 arguments to i32. CCIfType<[i8, i16], CCPromoteToType<i32>>, - // The first 3 integer arguments, if marked 'inreg', are passed in integer - // registers. - CCIfInReg<CCIfType<[i32], CCAssignToReg<[EAX, EDX, ECX]>>>, + // The first 3 integer arguments, if marked 'inreg' and if the call is not + // a vararg call, are passed in integer registers. + CCIfNotVarArg<CCIfInReg<CCIfType<[i32], CCAssignToReg<[EAX, EDX, ECX]>>>>, // Otherwise, same as everything else. CCDelegateTo<CC_X86_32_Common> |