mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-30 07:22:55 +01:00
2cac2ea7a1
In particular, don't spill dirty registers only to satisfy a hint. It is not worth it. The attached test case provides an example where the fast allocator would spill a register when other registers are available. llvm-svn: 132900
53 lines
1.7 KiB
LLVM
53 lines
1.7 KiB
LLVM
; RUN: llc < %s -O0 -disable-fp-elim -relocation-model=pic -stats |& FileCheck %s
|
|
;
|
|
; This test should not cause any spilling with RAFast.
|
|
;
|
|
; CHECK: Number of copies coalesced
|
|
; CHECK-NOT: Number of stores added
|
|
;
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
|
|
target triple = "x86_64-apple-darwin10.0.0"
|
|
|
|
%0 = type { i64, i64, i8*, i8* }
|
|
%1 = type opaque
|
|
%2 = type opaque
|
|
%3 = type <{ i8*, i32, i32, void (%4*)*, i8*, i64 }>
|
|
%4 = type { i8**, i32, i32, i8**, %5*, i64 }
|
|
%5 = type { i64, i64 }
|
|
%6 = type { i8*, i32, i32, i8*, %5* }
|
|
|
|
@0 = external hidden constant %0
|
|
|
|
define hidden void @f() ssp {
|
|
bb:
|
|
%tmp5 = alloca i64, align 8
|
|
%tmp6 = alloca void ()*, align 8
|
|
%tmp7 = alloca %3, align 8
|
|
store i64 0, i64* %tmp5, align 8
|
|
br label %bb8
|
|
|
|
bb8: ; preds = %bb23, %bb
|
|
%tmp15 = getelementptr inbounds %3* %tmp7, i32 0, i32 4
|
|
store i8* bitcast (%0* @0 to i8*), i8** %tmp15
|
|
%tmp16 = bitcast %3* %tmp7 to void ()*
|
|
store void ()* %tmp16, void ()** %tmp6, align 8
|
|
%tmp17 = load void ()** %tmp6, align 8
|
|
%tmp18 = bitcast void ()* %tmp17 to %6*
|
|
%tmp19 = getelementptr inbounds %6* %tmp18, i32 0, i32 3
|
|
%tmp20 = bitcast %6* %tmp18 to i8*
|
|
%tmp21 = load i8** %tmp19
|
|
%tmp22 = bitcast i8* %tmp21 to void (i8*)*
|
|
call void %tmp22(i8* %tmp20)
|
|
br label %bb23
|
|
|
|
bb23: ; preds = %bb8
|
|
%tmp24 = load i64* %tmp5, align 8
|
|
%tmp25 = add i64 %tmp24, 1
|
|
store i64 %tmp25, i64* %tmp5, align 8
|
|
%tmp26 = icmp ult i64 %tmp25, 10
|
|
br i1 %tmp26, label %bb8, label %bb27
|
|
|
|
bb27: ; preds = %bb23
|
|
ret void
|
|
}
|