| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instsimplify -S | FileCheck %s |
| |
| @zeroinit = constant {} zeroinitializer |
| @undef = constant {} undef |
| |
| define i32 @crash_on_zeroinit() { |
| ; CHECK-LABEL: @crash_on_zeroinit( |
| ; CHECK-NEXT: ret i32 undef |
| ; |
| %load = load i32, i32* bitcast ({}* @zeroinit to i32*) |
| ret i32 %load |
| } |
| |
| define i32 @crash_on_undef() { |
| ; CHECK-LABEL: @crash_on_undef( |
| ; CHECK-NEXT: ret i32 undef |
| ; |
| %load = load i32, i32* bitcast ({}* @undef to i32*) |
| ret i32 %load |
| } |
| |
| @GV = private constant [8 x i32] [i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48, i32 49] |
| |
| define <8 x i32> @partial_load() { |
| ; CHECK-LABEL: @partial_load( |
| ; CHECK-NEXT: ret <8 x i32> <i32 0, i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48> |
| ; |
| %load = load <8 x i32>, <8 x i32>* bitcast (i32* getelementptr ([8 x i32], [8 x i32]* @GV, i64 0, i64 -1) to <8 x i32>*) |
| ret <8 x i32> %load |
| } |
| |
| @constvec = internal constant <3 x float> <float 0xBFDA20BC40000000, float 0xBFE6A09EE0000000, float 0x3FE279A760000000> |
| |
| ; This does an out of bounds load from the global constant |
| define <3 x float> @load_vec3() { |
| ; CHECK-LABEL: @load_vec3( |
| ; CHECK-NEXT: ret <3 x float> undef |
| ; |
| %1 = load <3 x float>, <3 x float>* getelementptr inbounds (<3 x float>, <3 x float>* @constvec, i64 1) |
| ret <3 x float> %1 |
| } |