| ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep getelementptr | grep {, i64} |
| |
| ; Instcombine should promote the getelementptr index up to the target's |
| ; pointer size, making the conversion explicit, which helps expose it to |
| ; other optimizations. |
| |
| 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-apple-darwin8" |
| |
| define i64 @test(i64* %first, i32 %count) nounwind { |
| entry: |
| %first_addr = alloca i64* ; <i64**> [#uses=2] |
| %count_addr = alloca i32 ; <i32*> [#uses=2] |
| %retval = alloca i64 ; <i64*> [#uses=2] |
| %n = alloca i32 ; <i32*> [#uses=5] |
| %result = alloca i64 ; <i64*> [#uses=4] |
| %0 = alloca i64 ; <i64*> [#uses=2] |
| %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] |
| store i64* %first, i64** %first_addr |
| store i32 %count, i32* %count_addr |
| store i64 0, i64* %result, align 8 |
| store i32 0, i32* %n, align 4 |
| br label %bb1 |
| |
| bb: ; preds = %bb1 |
| %1 = load i64** %first_addr, align 8 ; <i64*> [#uses=1] |
| %2 = load i32* %n, align 4 ; <i32> [#uses=1] |
| %3 = bitcast i32 %2 to i32 ; <i64> [#uses=1] |
| %4 = getelementptr i64* %1, i32 %3 ; <i64*> [#uses=1] |
| %5 = load i64* %4, align 8 ; <i64> [#uses=1] |
| %6 = lshr i64 %5, 4 ; <i64> [#uses=1] |
| %7 = load i64* %result, align 8 ; <i64> [#uses=1] |
| %8 = add i64 %6, %7 ; <i64> [#uses=1] |
| store i64 %8, i64* %result, align 8 |
| %9 = load i32* %n, align 4 ; <i32> [#uses=1] |
| %10 = add i32 %9, 1 ; <i32> [#uses=1] |
| store i32 %10, i32* %n, align 4 |
| br label %bb1 |
| |
| bb1: ; preds = %bb, %entry |
| %11 = load i32* %n, align 4 ; <i32> [#uses=1] |
| %12 = load i32* %count_addr, align 4 ; <i32> [#uses=1] |
| %13 = icmp slt i32 %11, %12 ; <i1> [#uses=1] |
| %14 = zext i1 %13 to i8 ; <i8> [#uses=1] |
| %toBool = icmp ne i8 %14, 0 ; <i1> [#uses=1] |
| br i1 %toBool, label %bb, label %bb2 |
| |
| bb2: ; preds = %bb1 |
| %15 = load i64* %result, align 8 ; <i64> [#uses=1] |
| store i64 %15, i64* %0, align 8 |
| %16 = load i64* %0, align 8 ; <i64> [#uses=1] |
| store i64 %16, i64* %retval, align 8 |
| br label %return |
| |
| return: ; preds = %bb2 |
| %retval3 = load i64* %retval ; <i64> [#uses=1] |
| ret i64 %retval3 |
| } |