| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instsimplify -S | FileCheck %s |
| ; PR2165 |
| |
| define <1 x i64> @test1() { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: ret <1 x i64> <i64 63> |
| ; |
| %A = bitcast i64 63 to <1 x i64> |
| ret <1 x i64> %A |
| } |
| |
| ; Ensure that a FP source operand isn't propagated to an icmp. |
| |
| @a = external global i16, align 1 |
| @b = external global i16, align 1 |
| |
| define i1 @bad_icmp_constexpr_bitcast() { |
| ; CHECK-LABEL: @bad_icmp_constexpr_bitcast( |
| ; CHECK-NEXT: ret i1 icmp eq (i32 ptrtoint (i16* @a to i32), i32 bitcast (float fadd (float bitcast (i32 ptrtoint (i16* @b to i32) to float), float 2.000000e+00) to i32)) |
| ; |
| %cmp = icmp eq i32 ptrtoint (i16* @a to i32), bitcast (float fadd (float bitcast (i32 ptrtoint (i16* @b to i32) to float), float 2.0) to i32) |
| ret i1 %cmp |
| } |
| |
| ; Ensure that an integer source operand isn't propagated to a fcmp. |
| |
| @c = external global i16, align 1 |
| @d = external global i16, align 1 |
| |
| define i1 @bad_fcmp_constexpr_bitcast() { |
| ; CHECK-LABEL: @bad_fcmp_constexpr_bitcast( |
| ; CHECK-NEXT: ret i1 fcmp oeq (float bitcast (i32 ptrtoint (i16* @c to i32) to float), float bitcast (i32 add (i32 ptrtoint (i16* @d to i32), i32 2) to float)) |
| ; |
| %cmp = fcmp oeq float bitcast (i32 ptrtoint (i16* @c to i32) to float), bitcast (i32 add (i32 ptrtoint (i16* @d to i32), i32 2) to float) |
| ret i1 %cmp |
| } |
| |
| ; Ensure that an "ordered and equal" fcmp of a ConstantExpr to itself is not folded, since the ConstantExpr may be a NaN. |
| |
| define i1 @fcmp_constexpr_oeq(float %conv) { |
| ; CHECK-LABEL: @fcmp_constexpr_oeq( |
| ; CHECK-NEXT: ret i1 fcmp oeq (float bitcast (i32 ptrtoint (i16* @a to i32) to float), float bitcast (i32 ptrtoint (i16* @a to i32) to float)) |
| ; |
| %cmp = fcmp oeq float bitcast (i32 ptrtoint (i16* @a to i32) to float), bitcast (i32 ptrtoint (i16* @a to i32) to float) |
| ret i1 %cmp |
| } |
| |
| ; Ensure that an "unordered or not equal" fcmp of a ConstantExpr to itself is not folded, since the ConstantExpr may be a NaN. |
| |
| define i1 @fcmp_constexpr_une(float %conv) { |
| ; CHECK-LABEL: @fcmp_constexpr_une( |
| ; CHECK-NEXT: ret i1 fcmp une (float bitcast (i32 ptrtoint (i16* @a to i32) to float), float bitcast (i32 ptrtoint (i16* @a to i32) to float)) |
| ; |
| %cmp = fcmp une float bitcast (i32 ptrtoint (i16* @a to i32) to float), bitcast (i32 ptrtoint (i16* @a to i32) to float) |
| ret i1 %cmp |
| } |
| |
| define i1 @fcmp_constexpr_ueq(float %conv) { |
| ; CHECK-LABEL: @fcmp_constexpr_ueq( |
| ; CHECK-NEXT: ret i1 true |
| ; |
| %cmp = fcmp ueq float bitcast (i32 ptrtoint (i16* @a to i32) to float), bitcast (i32 ptrtoint (i16* @a to i32) to float) |
| ret i1 %cmp |
| } |
| |
| define i1 @fcmp_constexpr_one(float %conv) { |
| ; CHECK-LABEL: @fcmp_constexpr_one( |
| ; CHECK-NEXT: ret i1 false |
| ; |
| %cmp = fcmp one float bitcast (i32 ptrtoint (i16* @a to i32) to float), bitcast (i32 ptrtoint (i16* @a to i32) to float) |
| ret i1 %cmp |
| } |
| |
| %T = type { i8 } |
| @G = external global %T |
| |
| define i8* @bitcast_to_gep() { |
| ; CHECK-LABEL: @bitcast_to_gep( |
| ; CHECK-NEXT: ret i8* getelementptr inbounds (%T, %T* @G, i32 0, i32 0) |
| ; |
| %p = bitcast %T* @G to i8* |
| ret i8* %p |
| } |
| |
| define i8 addrspace(1)* @addrspacecast_to_gep() { |
| ; CHECK-LABEL: @addrspacecast_to_gep( |
| ; CHECK-NEXT: ret i8 addrspace(1)* addrspacecast (i8* getelementptr inbounds (%T, %T* @G, i32 0, i32 0) to i8 addrspace(1)*) |
| ; |
| %p = addrspacecast %T* @G to i8 addrspace(1)* |
| ret i8 addrspace(1)* %p |
| } |