[MIRPrinter] Print raw branch probabilities as expected by MIRParser

Fixes PR28751.

Reviewers: MatzeB, qcolombet

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D26775

llvm-svn: 287368

4 files changed, 31 insertions, 5 deletions

diff --git a/llvm/test/CodeGen/MIR/Generic/branch-probabilities.ll b/llvm/test/CodeGen/MIR/Generic/branch-probabilities.ll
new file mode 100644
index 00000000000..6a9e70ec47f
--- /dev/null
+++ b/llvm/test/CodeGen/MIR/Generic/branch-probabilities.ll
@@ -0,0 +1,26 @@
+; RUN: llc -stop-after machine-sink %s -o %t.mir
+; RUN: FileCheck %s < %t.mir
+; RUN: llc %t.mir -run-pass machine-sink
+; Check that branch probabilities are printed in a format that can then be parsed.
+
+declare void @foo()
+declare void @bar()
+
+define void @test(i1 %c) {
+; CHECK-LABEL: name: test
+entry:
+        br i1 %c, label %then, label %else
+
+then:
+        call void @foo()
+        br label %end
+; CHECK: successors: %{{[a-z0-9\-\.]+}}({{0x[0-9a-f]+}}), %{{[a-z0-9\-\.]+}}({{0x[0-9a-f]+}})
+
+else:
+        call void @bar()
+        br label %end
+; CHECK: successors: %{{[a-z0-9\-\.]+}}({{0x[0-9a-f]+}})
+
+end:
+        ret void
+}
diff --git a/llvm/test/CodeGen/MIR/X86/newline-handling.mir b/llvm/test/CodeGen/MIR/X86/newline-handling.mir
index ce43a83ecae..ce53e49eddb 100644
--- a/llvm/test/CodeGen/MIR/X86/newline-handling.mir
+++ b/llvm/test/CodeGen/MIR/X86/newline-handling.mir
@@ -35,7 +35,7 @@ liveins:
 # CHECK-LABEL: name: foo
 # CHECK: body: |
 # CHECK-NEXT: bb.0.entry:
-# CHECK-NEXT: successors: %bb.1.less(0x40000000 / 0x80000000 = 50.00%), %bb.2.exit(0x40000000 / 0x80000000 = 50.00%)
+# CHECK-NEXT: successors: %bb.1.less(0x40000000), %bb.2.exit(0x40000000)
 # CHECK-NEXT: liveins: %edi
 # CHECK:      CMP32ri8 %edi, 10, implicit-def %eflags
 # CHECK-NEXT: JG_1 %bb.2.exit, implicit killed %eflags
@@ -79,7 +79,7 @@ liveins:
 # CHECK-LABEL: name: bar
 # CHECK: body: |
 # CHECK-NEXT: bb.0.entry:
-# CHECK-NEXT: successors: %bb.1.less(0x40000000 / 0x80000000 = 50.00%), %bb.2.exit(0x40000000 / 0x80000000 = 50.00%)
+# CHECK-NEXT: successors: %bb.1.less(0x40000000), %bb.2.exit(0x40000000)
 # CHECK-NEXT: liveins: %edi
 # CHECK:      CMP32ri8 %edi, 10, implicit-def %eflags
 # CHECK-NEXT: JG_1 %bb.2.exit, implicit killed %eflags
diff --git a/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir b/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir
index 8de31f3274d..512ba4e41aa 100644
--- a/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir
+++ b/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir
@@ -21,7 +21,7 @@
 name:            foo
 body: |
   ; CHECK-LABEL: bb.0.entry:
-  ; CHECK:         successors: %bb.1.less({{[0-9a-fx/= ]+}}33.00%), %bb.2.exit({{[0-9a-fx/= ]+}}67.00%)
+  ; CHECK:         successors: %bb.1.less(0x2a3d70a4), %bb.2.exit(0x55c28f5c)
   ; CHECK-LABEL: bb.1.less:
   bb.0.entry:
     successors: %bb.1.less (33), %bb.2.exit(67)
diff --git a/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir b/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir
index 6f15f522bd5..395272bb23c 100644
--- a/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir
+++ b/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir
@@ -32,7 +32,7 @@
 name:            foo
 body: |
   ; CHECK-LABEL: bb.0.entry:
-  ; CHECK:         successors: %bb.1.less(0x40000000 / 0x80000000 = 50.00%), %bb.2.exit(0x40000000 / 0x80000000 = 50.00%)
+  ; CHECK:         successors: %bb.1.less(0x40000000), %bb.2.exit(0x40000000)
   ; CHECK-LABEL: bb.1.less:
   bb.0.entry:
     successors: %bb.1.less, %bb.2.exit
@@ -58,7 +58,7 @@ body: |
   ; Verify that we can have multiple lists of successors that will be merged
   ; into one.
   ; CHECK-LABEL: bb.0.entry:
-  ; CHECK:         successors: %bb.1(0x80000000 / 0x80000000 = 100.00%), %bb.2(0x00000000 / 0x80000000 = 0.00%)
+  ; CHECK:         successors: %bb.1(0x80000000), %bb.2(0x00000000)
   bb.0.entry:
     liveins: %edi
     successors: %bb.1