Re-apply 96540 and 96556 with fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97011 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 63 insertions, 10 deletions

diff --git a/test/CodeGen/X86/2010-02-23-DAGCombineBug.ll b/test/CodeGen/X86/2010-02-23-DAGCombineBug.ll
new file mode 100644
index 0000000000..ea3621f9f1
--- /dev/null
+++ b/test/CodeGen/X86/2010-02-23-DAGCombineBug.ll
@@ -0,0 +1,17 @@
+; RUN: llc < %s -march=x86 | FileCheck %s
+
+define i32* @t() nounwind optsize ssp {
+entry:
+; CHECK: t:
+; CHECK: testl %eax, %eax
+; CHECK: js
+  %cmp = icmp slt i32 undef, 0                    ; <i1> [#uses=1]
+  %outsearch.0 = select i1 %cmp, i1 false, i1 true ; <i1> [#uses=1]
+  br i1 %outsearch.0, label %if.then27, label %if.else29
+
+if.then27:                                        ; preds = %entry
+  ret i32* undef
+
+if.else29:                                        ; preds = %entry
+  unreachable
+}
diff --git a/test/CodeGen/X86/critical-edge-split.ll b/test/CodeGen/X86/critical-edge-split.ll
index 4fe554de75..f29cbf323e 100644
--- a/test/CodeGen/X86/critical-edge-split.ll
+++ b/test/CodeGen/X86/critical-edge-split.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -mtriple=i386-apple-darwin -tailcallopt=false -stats -info-output-file - | grep asm-printer | grep 31
+; RUN: llc < %s -mtriple=i386-apple-darwin -stats -info-output-file - | grep asm-printer | grep 29
 
 	%CC = type { %Register }
 	%II = type { %"struct.XX::II::$_74" }
diff --git a/test/CodeGen/X86/ins_subreg_coalesce-3.ll b/test/CodeGen/X86/ins_subreg_coalesce-3.ll
index 627edc51c1..8c1c409766 100644
--- a/test/CodeGen/X86/ins_subreg_coalesce-3.ll
+++ b/test/CodeGen/X86/ins_subreg_coalesce-3.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=x86-64 | grep mov | count 5
+; RUN: llc < %s -march=x86-64 | grep mov | count 3
 
 	%struct.COMPOSITE = type { i8, i16, i16 }
 	%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
diff --git a/test/CodeGen/X86/trunc-to-bool.ll b/test/CodeGen/X86/trunc-to-bool.ll
index bfab1aef90..6062084106 100644
--- a/test/CodeGen/X86/trunc-to-bool.ll
+++ b/test/CodeGen/X86/trunc-to-bool.ll
@@ -3,13 +3,14 @@
 ; value and as the operand of a branch.
 ; RUN: llc < %s -march=x86 | FileCheck %s
 
-define i1 @test1(i32 %X) zeroext {
+define i1 @test1(i32 %X) zeroext nounwind {
     %Y = trunc i32 %X to i1
     ret i1 %Y
 }
+; CHECK: test1:
 ; CHECK: andl $1, %eax
 
-define i1 @test2(i32 %val, i32 %mask) {
+define i1 @test2(i32 %val, i32 %mask) nounwind {
 entry:
     %shifted = ashr i32 %val, %mask
     %anded = and i32 %shifted, 1
@@ -20,9 +21,10 @@ ret_true:
 ret_false:
     ret i1 false
 }
-; CHECK: testb $1, %al
+; CHECK: test2:
+; CHECK: btl %eax
 
-define i32 @test3(i8* %ptr) {
+define i32 @test3(i8* %ptr) nounwind {
     %val = load i8* %ptr
     %tmp = trunc i8 %val to i1
     br i1 %tmp, label %cond_true, label %cond_false
@@ -31,9 +33,10 @@ cond_true:
 cond_false:
     ret i32 42
 }
-; CHECK: testb $1, %al
+; CHECK: test3:
+; CHECK: testb $1, (%eax)
 
-define i32 @test4(i8* %ptr) {
+define i32 @test4(i8* %ptr) nounwind {
     %tmp = ptrtoint i8* %ptr to i1
     br i1 %tmp, label %cond_true, label %cond_false
 cond_true:
@@ -41,9 +44,10 @@ cond_true:
 cond_false:
     ret i32 42
 }
-; CHECK: testb $1, %al
+; CHECK: test4:
+; CHECK: testb $1, 4(%esp)
 
-define i32 @test6(double %d) {
+define i32 @test5(double %d) nounwind {
     %tmp = fptosi double %d to i1
     br i1 %tmp, label %cond_true, label %cond_false
 cond_true:
@@ -51,4 +55,5 @@ cond_true:
 cond_false:
     ret i32 42
 }
+; CHECK: test5:
 ; CHECK: testb $1
diff --git a/test/CodeGen/X86/xor-icmp.ll b/test/CodeGen/X86/xor-icmp.ll
index a6bdb13ec6..2d75c5d762 100644
--- a/test/CodeGen/X86/xor-icmp.ll
+++ b/test/CodeGen/X86/xor-icmp.ll
@@ -1,5 +1,6 @@
 ; RUN: llc < %s -march=x86    | FileCheck %s -check-prefix=X32
 ; RUN: llc < %s -march=x86-64 | FileCheck %s -check-prefix=X64
+; rdar://7367229
 
 define i32 @t(i32 %a, i32 %b) nounwind ssp {
 entry:
@@ -34,3 +35,33 @@ bb1:                                              ; preds = %entry
 declare i32 @foo(...)
 
 declare i32 @bar(...)
+
+define i32 @t2(i32 %x, i32 %y) nounwind ssp {
+; X32: t2:
+; X32: cmpl
+; X32: sete
+; X32: cmpl
+; X32: sete
+; X32-NOT: xor
+; X32: je
+
+; X64: t2:
+; X64: testl
+; X64: sete
+; X64: testl
+; X64: sete
+; X64-NOT: xor
+; X64: je
+entry:
+  %0 = icmp eq i32 %x, 0                          ; <i1> [#uses=1]
+  %1 = icmp eq i32 %y, 0                          ; <i1> [#uses=1]
+  %2 = xor i1 %1, %0                              ; <i1> [#uses=1]
+  br i1 %2, label %bb, label %return
+
+bb:                                               ; preds = %entry
+  %3 = tail call i32 (...)* @foo() nounwind       ; <i32> [#uses=0]
+  ret i32 undef
+
+return:                                           ; preds = %entry
+  ret i32 undef
+}