Rebased PNaCl localmods in LLVM to 223109

test/Transforms/MinSFI/substitute-undefs.ll

+; RUN: opt %s -minsfi-substitute-undefs -S | FileCheck %s
+
+target datalayout = "p:32:32:32"
+target triple = "le32-unknown-nacl"
+
+define i1 @test_undef_i1() {
+  ret i1 undef                             ; replaced with 0x0
+}
+
+; CHECK-LABEL: define i1 @test_undef_i1() {
+; CHECK-NEXT:    ret i1 false
+; CHECK-NEXT:  }
+
+define i8 @test_undef_i8() {
+  ret i8 undef                             ; replaced with 0xBE
+}
+
+; CHECK-LABEL: define i8 @test_undef_i8() {
+; CHECK-NEXT:    ret i8 -66
+; CHECK-NEXT:  }
+
+define i64 @test_undef_i64() {
+  ret i64 undef                            ; replaced with 0xBAADF00DCAFEBABE
+}
+
+; CHECK-LABEL: define i64 @test_undef_i64() {
+; CHECK-NEXT:    ret i64 -4995072469653079362
+; CHECK-NEXT:  }
+
+define <8 x i16> @test_undef_i16vec() {
+  ret <8 x i16> undef                      ; replace with a vector of 0xBABE
+}
+
+; CHECK-LABEL: define <8 x i16> @test_undef_i16vec() {
+; CHECK-NEXT:    ret <8 x i16> <i16 -17730, i16 -17730, i16 -17730, i16 -17730, i16 -17730, i16 -17730, i16 -17730, i16 -17730>
+; CHECK-NEXT:  }
+
+define float @test_undef_float() {
+  ret float undef                          ; replaced with pi
+}
+
+; CHECK-LABEL: define float @test_undef_float() {
+; CHECK-NEXT:    ret float 0x400921FB60000000
+; CHECK-NEXT:  }
+
+define double @test_undef_double() {
+  ret double undef                         ; replaced with pi
+}
+
+; CHECK-LABEL: define double @test_undef_double() {
+; CHECK-NEXT:    ret double 0x400921FB54442EEA
+; CHECK-NEXT:  }
+
+define <4 x float> @test_undef_floatvec() {
+  ret <4 x float> undef                    ; replaced with a vector of pi
+}
+
+; CHECK-LABEL: define <4 x float> @test_undef_floatvec() {
+; CHECK-NEXT:    ret <4 x float> <float 0x400921FB60000000, float 0x400921FB60000000, float 0x400921FB60000000, float 0x400921FB60000000>
+; CHECK-NEXT:  }
+
+
+
+declare void @foo(i32, float)
+
+define void @test_more_operands() {
+  call void @foo(i32 undef, float undef)
+  ret void
+}
+
+; CHECK-LABEL: define void @test_more_operands() {
+; CHECK-NEXT:    call void @foo(i32 -889275714, float 0x400921FB60000000)
+; CHECK-NEXT:    ret void
+; CHECK-NEXT:  }
+
+define void @test_more_basicblocks() {
+entry:
+  br label %loop
+
+loop:
+  %i = phi i16 [ undef, %entry ], [ %next, %loop ]
+  %next = add i16 %i, 1
+  br i1 undef, label %exit, label %loop
+
+exit:
+  ret void
+}
+
+; CHECK-LABEL: define void @test_more_basicblocks() {
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br label %loop
+; CHECK:       loop:
+; CHECK-NEXT:    %i = phi i16 [ -17730, %entry ], [ %next, %loop ]
+; CHECK-NEXT:    %next = add i16 %i, 1
+; CHECK-NEXT:    br i1 false, label %exit
+; CHECK:       exit:
+; CHECK-NEXT:    ret void
+; CHECK-NEXT:  }