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| author | Evan Cheng <evan.cheng@apple.com> | 2008-09-04 22:59:58 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-09-04 22:59:58 +0000 |
| commit | 6c94b99c6285f6f7156edd20fabf4c0918013600 (patch) | |
| tree | 39d7f0698872c9b85272bc3a19652b3bd64d2b2c /llvm/test/CodeGen/X86/coalescer-commute3.ll | |
| parent | 40519f03703d2ee412b5f930f3d2edf79fe260c9 (diff) | |
| download | bcm5719-llvm-6c94b99c6285f6f7156edd20fabf4c0918013600.tar.gz bcm5719-llvm-6c94b99c6285f6f7156edd20fabf4c0918013600.zip | |
For whatever the reason, x86 CallingConv::Fast (i.e. fastcc) was not passing scalar arguments in registers. This patch defines a new fastcc CC which is slightly different from the FastCall CC. In addition to passing integer arguments in ECX and EDX, it also specify doubles are passed in 8-byte slots which are 8-byte aligned (instead of 4-byte aligned). This avoids a potential performance hazard where doubles span cacheline boundaries.
llvm-svn: 55807
Diffstat (limited to 'llvm/test/CodeGen/X86/coalescer-commute3.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/coalescer-commute3.ll | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/test/CodeGen/X86/coalescer-commute3.ll b/llvm/test/CodeGen/X86/coalescer-commute3.ll index ea756372253..7d4a80ab70f 100644 --- a/llvm/test/CodeGen/X86/coalescer-commute3.ll +++ b/llvm/test/CodeGen/X86/coalescer-commute3.ll @@ -2,7 +2,7 @@ %struct.quad_struct = type { i32, i32, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct* } -define fastcc i32 @perimeter(%struct.quad_struct* %tree, i32 %size) nounwind { +define i32 @perimeter(%struct.quad_struct* %tree, i32 %size) nounwind { entry: switch i32 %size, label %UnifiedReturnBlock [ i32 2, label %bb @@ -10,8 +10,8 @@ entry: ] bb: ; preds = %entry - %tmp31 = tail call fastcc i32 @perimeter( %struct.quad_struct* null, i32 0 ) nounwind ; <i32> [#uses=1] - %tmp40 = tail call fastcc i32 @perimeter( %struct.quad_struct* null, i32 0 ) nounwind ; <i32> [#uses=1] + %tmp31 = tail call i32 @perimeter( %struct.quad_struct* null, i32 0 ) nounwind ; <i32> [#uses=1] + %tmp40 = tail call i32 @perimeter( %struct.quad_struct* null, i32 0 ) nounwind ; <i32> [#uses=1] %tmp33 = add i32 0, %tmp31 ; <i32> [#uses=1] %tmp42 = add i32 %tmp33, %tmp40 ; <i32> [#uses=1] ret i32 %tmp42 |
