Add a new Constant::getIntegerValue helper function, and convert a
few places in InstCombine to use it, to fix problems handling pointer
types. This fixes the recent llvm-gcc bootstrap error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78005 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/InstCombine/simplify-demanded-bits-pointer.ll b/test/Transforms/InstCombine/simplify-demanded-bits-pointer.ll
new file mode 100644
index 0000000..d399799
--- /dev/null
+++ b/test/Transforms/InstCombine/simplify-demanded-bits-pointer.ll
@@ -0,0 +1,84 @@
+; RUN: llvm-as < %s | opt -instcombine
+
+; SimplifyDemandedBits should cope with pointer types.
+
+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"
+target triple = "x86_64-unknown-linux-gnu"
+ %struct.VEC_rtx_base = type { i32, i32, [1 x %struct.rtx_def*] }
+ %struct.VEC_rtx_gc = type { %struct.VEC_rtx_base }
+ %struct.block_symbol = type { [3 x %struct.rtunion], %struct.object_block*, i64 }
+ %struct.object_block = type { %struct.section*, i32, i64, %struct.VEC_rtx_gc*, %struct.VEC_rtx_gc* }
+ %struct.omp_clause_subcode = type { i32 }
+ %struct.rtunion = type { i8* }
+ %struct.rtx_def = type { i16, i8, i8, %struct.u }
+ %struct.section = type { %struct.unnamed_section }
+ %struct.u = type { %struct.block_symbol }
+ %struct.unnamed_section = type { %struct.omp_clause_subcode, void (i8*)*, i8*, %struct.section* }
+
+define fastcc void @cse_insn(%struct.rtx_def* %insn, %struct.rtx_def* %libcall_insn) nounwind {
+entry:
+ br i1 undef, label %bb43, label %bb88
+
+bb43: ; preds = %entry
+ br label %bb88
+
+bb88: ; preds = %bb43, %entry
+ br i1 undef, label %bb95, label %bb107
+
+bb95: ; preds = %bb88
+ unreachable
+
+bb107: ; preds = %bb88
+ %0 = load i16* undef, align 8 ; <i16> [#uses=1]
+ %1 = icmp eq i16 %0, 38 ; <i1> [#uses=1]
+ %src_eqv_here.0 = select i1 %1, %struct.rtx_def* null, %struct.rtx_def* null ; <%struct.rtx_def*> [#uses=1]
+ br i1 undef, label %bb127, label %bb125
+
+bb125: ; preds = %bb107
+ br i1 undef, label %bb127, label %bb126
+
+bb126: ; preds = %bb125
+ br i1 undef, label %bb129, label %bb133
+
+bb127: ; preds = %bb125, %bb107
+ unreachable
+
+bb129: ; preds = %bb126
+ br label %bb133
+
+bb133: ; preds = %bb129, %bb126
+ br i1 undef, label %bb134, label %bb146
+
+bb134: ; preds = %bb133
+ unreachable
+
+bb146: ; preds = %bb133
+ br i1 undef, label %bb180, label %bb186
+
+bb180: ; preds = %bb146
+ %2 = icmp eq %struct.rtx_def* null, null ; <i1> [#uses=1]
+ %3 = zext i1 %2 to i8 ; <i8> [#uses=1]
+ %4 = icmp ne %struct.rtx_def* %src_eqv_here.0, null ; <i1> [#uses=1]
+ %5 = zext i1 %4 to i8 ; <i8> [#uses=1]
+ %toBool181 = icmp ne i8 %3, 0 ; <i1> [#uses=1]
+ %toBool182 = icmp ne i8 %5, 0 ; <i1> [#uses=1]
+ %6 = and i1 %toBool181, %toBool182 ; <i1> [#uses=1]
+ %7 = zext i1 %6 to i8 ; <i8> [#uses=1]
+ %toBool183 = icmp ne i8 %7, 0 ; <i1> [#uses=1]
+ br i1 %toBool183, label %bb184, label %bb186
+
+bb184: ; preds = %bb180
+ br i1 undef, label %bb185, label %bb186
+
+bb185: ; preds = %bb184
+ br label %bb186
+
+bb186: ; preds = %bb185, %bb184, %bb180, %bb146
+ br i1 undef, label %bb190, label %bb195
+
+bb190: ; preds = %bb186
+ unreachable
+
+bb195: ; preds = %bb186
+ unreachable
+}