From 38bdc5762f58b64d652864d154bf1b4dffb5ed39 Mon Sep 17 00:00:00 2001 From: Akira Hatanaka Date: Fri, 17 Feb 2012 02:20:26 +0000 Subject: Do not promote i32 arguments to i64. This was causing unnecessary sign extension instructions to be emitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150782 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/Mips/MipsCallingConv.td | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) (limited to 'lib/Target/Mips/MipsCallingConv.td') diff --git a/lib/Target/Mips/MipsCallingConv.td b/lib/Target/Mips/MipsCallingConv.td index c340765c7b..878ee3860b 100644 --- a/lib/Target/Mips/MipsCallingConv.td +++ b/lib/Target/Mips/MipsCallingConv.td @@ -38,10 +38,15 @@ def CC_MipsN : CallingConv<[ // Handles byval parameters. CCIfByVal>, - // Promote i8/i16/i32 arguments to i64. - CCIfType<[i8, i16, i32], CCPromoteToType>, + // Promote i8/i16 arguments to i32. + CCIfType<[i8, i16], CCPromoteToType>, // Integer arguments are passed in integer registers. + CCIfType<[i32], CCAssignToRegWithShadow<[A0, A1, A2, A3, + T0, T1, T2, T3], + [F12, F13, F14, F15, + F16, F17, F18, F19]>>, + CCIfType<[i64], CCAssignToRegWithShadow<[A0_64, A1_64, A2_64, A3_64, T0_64, T1_64, T2_64, T3_64], [D12_64, D13_64, D14_64, D15_64, @@ -60,8 +65,8 @@ def CC_MipsN : CallingConv<[ T0_64, T1_64, T2_64, T3_64]>>, // All stack parameter slots become 64-bit doublewords and are 8-byte aligned. - CCIfType<[i64, f64], CCAssignToStack<8, 8>>, - CCIfType<[f32], CCAssignToStack<4, 8>> + CCIfType<[i32, f32], CCAssignToStack<4, 8>>, + CCIfType<[i64, f64], CCAssignToStack<8, 8>> ]>; // N32/64 variable arguments. @@ -70,17 +75,17 @@ def CC_MipsN_VarArg : CallingConv<[ // Handles byval parameters. CCIfByVal>, - // Promote i8/i16/i32 arguments to i64. - CCIfType<[i8, i16, i32], CCPromoteToType>, + // Promote i8/i16 arguments to i32. + CCIfType<[i8, i16], CCPromoteToType>, + + CCIfType<[i32, f32], CCAssignToReg<[A0, A1, A2, A3, T0, T1, T2, T3]>>, CCIfType<[i64, f64], CCAssignToReg<[A0_64, A1_64, A2_64, A3_64, T0_64, T1_64, T2_64, T3_64]>>, - CCIfType<[f32], CCAssignToReg<[A0, A1, A2, A3, T0, T1, T2, T3]>>, - // All stack parameter slots become 64-bit doublewords and are 8-byte aligned. - CCIfType<[i64, f64], CCAssignToStack<8, 8>>, - CCIfType<[f32], CCAssignToStack<4, 8>> + CCIfType<[i32, f32], CCAssignToStack<4, 8>>, + CCIfType<[i64, f64], CCAssignToStack<8, 8>> ]>; def RetCC_MipsN : CallingConv<[ -- cgit v1.2.3