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-rw-r--r--test/CodeGen/X86/StackColoring.ll272
1 files changed, 272 insertions, 0 deletions
diff --git a/test/CodeGen/X86/StackColoring.ll b/test/CodeGen/X86/StackColoring.ll
new file mode 100644
index 0000000000..26ed0ecc0c
--- /dev/null
+++ b/test/CodeGen/X86/StackColoring.ll
@@ -0,0 +1,272 @@
+; RUN: llc -mcpu=corei7 -no-stack-coloring=false < %s | FileCheck %s --check-prefix=YESCOLOR
+; RUN: llc -mcpu=corei7 -no-stack-coloring=true < %s | FileCheck %s --check-prefix=NOCOLOR
+
+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-S128"
+target triple = "x86_64-apple-macosx10.8.0"
+
+;YESCOLOR: subq $136, %rsp
+;NOCOLOR: subq $264, %rsp
+
+
+define i32 @myCall_w2(i32 %in) {
+entry:
+ %a = alloca [17 x i8*], align 8
+ %a2 = alloca [16 x i8*], align 8
+ %b = bitcast [17 x i8*]* %a to i8*
+ %b2 = bitcast [16 x i8*]* %a2 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %b)
+ %t1 = call i32 @foo(i32 %in, i8* %b)
+ %t2 = call i32 @foo(i32 %in, i8* %b)
+ call void @llvm.lifetime.end(i64 -1, i8* %b)
+ call void @llvm.lifetime.start(i64 -1, i8* %b2)
+ %t3 = call i32 @foo(i32 %in, i8* %b2)
+ %t4 = call i32 @foo(i32 %in, i8* %b2)
+ call void @llvm.lifetime.end(i64 -1, i8* %b2)
+ %t5 = add i32 %t1, %t2
+ %t6 = add i32 %t3, %t4
+ %t7 = add i32 %t5, %t6
+ ret i32 %t7
+}
+
+
+;YESCOLOR: subq $272, %rsp
+;NOCOLOR: subq $272, %rsp
+
+define i32 @myCall2_no_merge(i32 %in, i1 %d) {
+entry:
+ %a = alloca [17 x i8*], align 8
+ %a2 = alloca [16 x i8*], align 8
+ %b = bitcast [17 x i8*]* %a to i8*
+ %b2 = bitcast [16 x i8*]* %a2 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %b)
+ %t1 = call i32 @foo(i32 %in, i8* %b)
+ %t2 = call i32 @foo(i32 %in, i8* %b)
+ br i1 %d, label %bb2, label %bb3
+bb2:
+ call void @llvm.lifetime.start(i64 -1, i8* %b2)
+ %t3 = call i32 @foo(i32 %in, i8* %b2)
+ %t4 = call i32 @foo(i32 %in, i8* %b2)
+ call void @llvm.lifetime.end(i64 -1, i8* %b2)
+ %t5 = add i32 %t1, %t2
+ %t6 = add i32 %t3, %t4
+ %t7 = add i32 %t5, %t6
+ call void @llvm.lifetime.end(i64 -1, i8* %b)
+ ret i32 %t7
+bb3:
+ call void @llvm.lifetime.end(i64 -1, i8* %b)
+ ret i32 0
+}
+
+;YESCOLOR: subq $144, %rsp
+;NOCOLOR: subq $272, %rsp
+
+define i32 @myCall2_w2(i32 %in, i1 %d) {
+entry:
+ %a = alloca [17 x i8*], align 8
+ %a2 = alloca [16 x i8*], align 8
+ %b = bitcast [17 x i8*]* %a to i8*
+ %b2 = bitcast [16 x i8*]* %a2 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %b)
+ %t1 = call i32 @foo(i32 %in, i8* %b)
+ %t2 = call i32 @foo(i32 %in, i8* %b)
+ call void @llvm.lifetime.end(i64 -1, i8* %b)
+ br i1 %d, label %bb2, label %bb3
+bb2:
+ call void @llvm.lifetime.start(i64 -1, i8* %b2)
+ %t3 = call i32 @foo(i32 %in, i8* %b2)
+ %t4 = call i32 @foo(i32 %in, i8* %b2)
+ call void @llvm.lifetime.end(i64 -1, i8* %b2)
+ %t5 = add i32 %t1, %t2
+ %t6 = add i32 %t3, %t4
+ %t7 = add i32 %t5, %t6
+ ret i32 %t7
+bb3:
+ ret i32 0
+}
+;YESCOLOR: subq $208, %rsp
+;NOCOLOR: subq $400, %rsp
+
+
+
+
+define i32 @myCall_w4(i32 %in) {
+entry:
+ %a1 = alloca [14 x i8*], align 8
+ %a2 = alloca [13 x i8*], align 8
+ %a3 = alloca [12 x i8*], align 8
+ %a4 = alloca [11 x i8*], align 8
+ %b1 = bitcast [14 x i8*]* %a1 to i8*
+ %b2 = bitcast [13 x i8*]* %a2 to i8*
+ %b3 = bitcast [12 x i8*]* %a3 to i8*
+ %b4 = bitcast [11 x i8*]* %a4 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %b4)
+ call void @llvm.lifetime.start(i64 -1, i8* %b1)
+ %t1 = call i32 @foo(i32 %in, i8* %b1)
+ %t2 = call i32 @foo(i32 %in, i8* %b1)
+ call void @llvm.lifetime.end(i64 -1, i8* %b1)
+ call void @llvm.lifetime.start(i64 -1, i8* %b2)
+ %t9 = call i32 @foo(i32 %in, i8* %b2)
+ %t8 = call i32 @foo(i32 %in, i8* %b2)
+ call void @llvm.lifetime.end(i64 -1, i8* %b2)
+ call void @llvm.lifetime.start(i64 -1, i8* %b3)
+ %t3 = call i32 @foo(i32 %in, i8* %b3)
+ %t4 = call i32 @foo(i32 %in, i8* %b3)
+ call void @llvm.lifetime.end(i64 -1, i8* %b3)
+ %t11 = call i32 @foo(i32 %in, i8* %b4)
+ call void @llvm.lifetime.end(i64 -1, i8* %b4)
+ %t5 = add i32 %t1, %t2
+ %t6 = add i32 %t3, %t4
+ %t7 = add i32 %t5, %t6
+ ret i32 %t7
+}
+
+;YESCOLOR: subq $112, %rsp
+;NOCOLOR: subq $400, %rsp
+
+define i32 @myCall2_w4(i32 %in) {
+entry:
+ %a1 = alloca [14 x i8*], align 8
+ %a2 = alloca [13 x i8*], align 8
+ %a3 = alloca [12 x i8*], align 8
+ %a4 = alloca [11 x i8*], align 8
+ %b1 = bitcast [14 x i8*]* %a1 to i8*
+ %b2 = bitcast [13 x i8*]* %a2 to i8*
+ %b3 = bitcast [12 x i8*]* %a3 to i8*
+ %b4 = bitcast [11 x i8*]* %a4 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %b1)
+ %t1 = call i32 @foo(i32 %in, i8* %b1)
+ %t2 = call i32 @foo(i32 %in, i8* %b1)
+ call void @llvm.lifetime.end(i64 -1, i8* %b1)
+ call void @llvm.lifetime.start(i64 -1, i8* %b2)
+ %t9 = call i32 @foo(i32 %in, i8* %b2)
+ %t8 = call i32 @foo(i32 %in, i8* %b2)
+ call void @llvm.lifetime.end(i64 -1, i8* %b2)
+ call void @llvm.lifetime.start(i64 -1, i8* %b3)
+ %t3 = call i32 @foo(i32 %in, i8* %b3)
+ %t4 = call i32 @foo(i32 %in, i8* %b3)
+ call void @llvm.lifetime.end(i64 -1, i8* %b3)
+ br i1 undef, label %bb2, label %bb3
+bb2:
+ call void @llvm.lifetime.start(i64 -1, i8* %b4)
+ %t11 = call i32 @foo(i32 %in, i8* %b4)
+ call void @llvm.lifetime.end(i64 -1, i8* %b4)
+ %t5 = add i32 %t1, %t2
+ %t6 = add i32 %t3, %t4
+ %t7 = add i32 %t5, %t6
+ ret i32 %t7
+bb3:
+ ret i32 0
+}
+
+
+;YESCOLOR: subq $144, %rsp
+;NOCOLOR: subq $272, %rsp
+
+
+define i32 @myCall2_noend(i32 %in, i1 %d) {
+entry:
+ %a = alloca [17 x i8*], align 8
+ %a2 = alloca [16 x i8*], align 8
+ %b = bitcast [17 x i8*]* %a to i8*
+ %b2 = bitcast [16 x i8*]* %a2 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %b)
+ %t1 = call i32 @foo(i32 %in, i8* %b)
+ %t2 = call i32 @foo(i32 %in, i8* %b)
+ call void @llvm.lifetime.end(i64 -1, i8* %b)
+ br i1 %d, label %bb2, label %bb3
+bb2:
+ call void @llvm.lifetime.start(i64 -1, i8* %b2)
+ %t3 = call i32 @foo(i32 %in, i8* %b2)
+ %t4 = call i32 @foo(i32 %in, i8* %b2)
+ %t5 = add i32 %t1, %t2
+ %t6 = add i32 %t3, %t4
+ %t7 = add i32 %t5, %t6
+ ret i32 %t7
+bb3:
+ ret i32 0
+}
+
+;YESCOLOR: subq $144, %rsp
+;NOCOLOR: subq $272, %rsp
+define i32 @myCall2_noend2(i32 %in, i1 %d) {
+entry:
+ %a = alloca [17 x i8*], align 8
+ %a2 = alloca [16 x i8*], align 8
+ %b = bitcast [17 x i8*]* %a to i8*
+ %b2 = bitcast [16 x i8*]* %a2 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %b)
+ %t1 = call i32 @foo(i32 %in, i8* %b)
+ %t2 = call i32 @foo(i32 %in, i8* %b)
+ br i1 %d, label %bb2, label %bb3
+bb2:
+ call void @llvm.lifetime.end(i64 -1, i8* %b)
+ call void @llvm.lifetime.start(i64 -1, i8* %b2)
+ %t3 = call i32 @foo(i32 %in, i8* %b2)
+ %t4 = call i32 @foo(i32 %in, i8* %b2)
+ %t5 = add i32 %t1, %t2
+ %t6 = add i32 %t3, %t4
+ %t7 = add i32 %t5, %t6
+ ret i32 %t7
+bb3:
+ ret i32 0
+}
+
+
+;YESCOLOR: subq $144, %rsp
+;NOCOLOR: subq $272, %rsp
+define i32 @myCall2_nostart(i32 %in, i1 %d) {
+entry:
+ %a = alloca [17 x i8*], align 8
+ %a2 = alloca [16 x i8*], align 8
+ %b = bitcast [17 x i8*]* %a to i8*
+ %b2 = bitcast [16 x i8*]* %a2 to i8*
+ %t1 = call i32 @foo(i32 %in, i8* %b)
+ %t2 = call i32 @foo(i32 %in, i8* %b)
+ call void @llvm.lifetime.end(i64 -1, i8* %b)
+ br i1 %d, label %bb2, label %bb3
+bb2:
+ call void @llvm.lifetime.start(i64 -1, i8* %b2)
+ %t3 = call i32 @foo(i32 %in, i8* %b2)
+ %t4 = call i32 @foo(i32 %in, i8* %b2)
+ %t5 = add i32 %t1, %t2
+ %t6 = add i32 %t3, %t4
+ %t7 = add i32 %t5, %t6
+ ret i32 %t7
+bb3:
+ ret i32 0
+}
+
+; Adopt the test from Transforms/Inline/array_merge.ll'
+;YESCOLOR: subq $816, %rsp
+;NOCOLOR: subq $1616, %rsp
+define void @array_merge() nounwind ssp {
+entry:
+ %A.i1 = alloca [100 x i32], align 4
+ %B.i2 = alloca [100 x i32], align 4
+ %A.i = alloca [100 x i32], align 4
+ %B.i = alloca [100 x i32], align 4
+ %0 = bitcast [100 x i32]* %A.i to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %0) nounwind
+ %1 = bitcast [100 x i32]* %B.i to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %1) nounwind
+ call void @bar([100 x i32]* %A.i, [100 x i32]* %B.i) nounwind
+ call void @llvm.lifetime.end(i64 -1, i8* %0) nounwind
+ call void @llvm.lifetime.end(i64 -1, i8* %1) nounwind
+ %2 = bitcast [100 x i32]* %A.i1 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %2) nounwind
+ %3 = bitcast [100 x i32]* %B.i2 to i8*
+ call void @llvm.lifetime.start(i64 -1, i8* %3) nounwind
+ call void @bar([100 x i32]* %A.i1, [100 x i32]* %B.i2) nounwind
+ call void @llvm.lifetime.end(i64 -1, i8* %2) nounwind
+ call void @llvm.lifetime.end(i64 -1, i8* %3) nounwind
+ ret void
+}
+
+declare void @bar([100 x i32]* , [100 x i32]*) nounwind
+
+declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind
+
+declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind
+
+ declare i32 @foo(i32, i8*)
+
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