Fine tuning of sample profile propagation algorithm.
Summary: The refined propagation algorithm is more accurate and robust.
Reviewers: davidxl, dnovillo
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23224
llvm-svn: 278522
diff --git a/llvm/test/Transforms/SampleProfile/discriminator.ll b/llvm/test/Transforms/SampleProfile/discriminator.ll
index 862c2ee..d0b96a9 100644
--- a/llvm/test/Transforms/SampleProfile/discriminator.ll
+++ b/llvm/test/Transforms/SampleProfile/discriminator.ll
@@ -35,15 +35,15 @@
%0 = load i32, i32* %i.addr, align 4, !dbg !12
%cmp = icmp slt i32 %0, 100, !dbg !12
br i1 %cmp, label %while.body, label %while.end, !dbg !12
-; CHECK: edge while.cond -> while.body probability is 0x7ebb907a / 0x80000000 = 99.01% [HOT edge]
-; CHECK: edge while.cond -> while.end probability is 0x01446f86 / 0x80000000 = 0.99%
+; CHECK: edge while.cond -> while.body probability is 0x7d83ba68 / 0x80000000 = 98.06% [HOT edge]
+; CHECK: edge while.cond -> while.end probability is 0x027c4598 / 0x80000000 = 1.94%
while.body: ; preds = %while.cond
%1 = load i32, i32* %i.addr, align 4, !dbg !14
%cmp1 = icmp slt i32 %1, 50, !dbg !14
br i1 %cmp1, label %if.then, label %if.end, !dbg !14
-; CHECK: edge while.body -> if.then probability is 0x06666666 / 0x80000000 = 5.00%
-; CHECK: edge while.body -> if.end probability is 0x7999999a / 0x80000000 = 95.00% [HOT edge]
+; CHECK: edge while.body -> if.then probability is 0x07878788 / 0x80000000 = 5.88%
+; CHECK: edge while.body -> if.end probability is 0x78787878 / 0x80000000 = 94.12% [HOT edge]
if.then: ; preds = %while.body
%2 = load i32, i32* %x, align 4, !dbg !17