From 258915a55539593423c3d4c30f7b741f65c56e51 Mon Sep 17 00:00:00 2001 From: Matthew Maurer Date: Fri, 8 Aug 2025 17:38:03 +0000 Subject: [PATCH] llvm: Accept new LLVM lifetime format LLVM removed the size parameter from the lifetime format. Tolerate not having that size parameter. --- compiler/rustc_codegen_llvm/src/builder.rs | 6 ++++- .../align-byval-alignment-mismatch.rs | 4 ++-- tests/codegen-llvm/call-tmps-lifetime.rs | 16 ++++++------- .../codegen-llvm/intrinsics/transmute-simd.rs | 24 +++++++++---------- tests/codegen-llvm/intrinsics/transmute.rs | 8 +++---- .../issues/issue-105386-ub-in-debuginfo.rs | 2 +- tests/codegen-llvm/lifetime_start_end.rs | 16 ++++++------- .../uninhabited-transparent-return-abi.rs | 4 ++-- 8 files changed, 42 insertions(+), 38 deletions(-) diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index bd175e560c77a..35a619da71015 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -1686,7 +1686,11 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { return; } - self.call_intrinsic(intrinsic, &[self.val_ty(ptr)], &[self.cx.const_u64(size), ptr]); + if crate::llvm_util::get_version() >= (22, 0, 0) { + self.call_intrinsic(intrinsic, &[self.val_ty(ptr)], &[ptr]); + } else { + self.call_intrinsic(intrinsic, &[self.val_ty(ptr)], &[self.cx.const_u64(size), ptr]); + } } } impl<'a, 'll, CX: Borrow>> GenericBuilder<'a, 'll, CX> { diff --git a/tests/codegen-llvm/align-byval-alignment-mismatch.rs b/tests/codegen-llvm/align-byval-alignment-mismatch.rs index c69fc2de9d257..8eaf2751ed789 100644 --- a/tests/codegen-llvm/align-byval-alignment-mismatch.rs +++ b/tests/codegen-llvm/align-byval-alignment-mismatch.rs @@ -55,10 +55,10 @@ extern "C" { pub unsafe fn rust_to_c_increases_alignment(x: Align1) { // i686-linux: start: // i686-linux-NEXT: [[ALLOCA:%[0-9a-z]+]] = alloca [48 x i8], align 4 - // i686-linux-NEXT: call void @llvm.lifetime.start.p0(i64 48, ptr {{.*}}[[ALLOCA]]) + // i686-linux-NEXT: call void @llvm.lifetime.start.p0({{(i64 48, )?}}ptr {{.*}}[[ALLOCA]]) // i686-linux-NEXT: call void @llvm.memcpy.{{.+}}(ptr {{.*}}align 4 {{.*}}[[ALLOCA]], ptr {{.*}}align 1 {{.*}}%x // i686-linux-NEXT: call void @extern_c_align1({{.+}} [[ALLOCA]]) - // i686-linux-NEXT: call void @llvm.lifetime.end.p0(i64 48, ptr {{.*}}[[ALLOCA]]) + // i686-linux-NEXT: call void @llvm.lifetime.end.p0({{(i64 48, )?}}ptr {{.*}}[[ALLOCA]]) // x86_64-linux: start: // x86_64-linux-NEXT: call void @extern_c_align1 diff --git a/tests/codegen-llvm/call-tmps-lifetime.rs b/tests/codegen-llvm/call-tmps-lifetime.rs index 7b7b6e17bddd3..0d7657ed758b0 100644 --- a/tests/codegen-llvm/call-tmps-lifetime.rs +++ b/tests/codegen-llvm/call-tmps-lifetime.rs @@ -16,14 +16,14 @@ use minicore::*; // CHECK-NEXT: start: // CHECK-NEXT: [[B:%.*]] = alloca // CHECK-NEXT: [[A:%.*]] = alloca -// CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 4096, ptr [[A]]) +// CHECK-NEXT: call void @llvm.lifetime.start.p0({{(i64 4096, )?}}ptr [[A]]) // CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[A]], ptr align 4 {{.*}}, i32 4096, i1 false) // CHECK-NEXT: call void %h(ptr {{.*}} [[A]]) -// CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 4096, ptr [[A]]) -// CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 4096, ptr [[B]]) +// CHECK-NEXT: call void @llvm.lifetime.end.p0({{(i64 4096, )?}}ptr [[A]]) +// CHECK-NEXT: call void @llvm.lifetime.start.p0({{(i64 4096, )?}}ptr [[B]]) // CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[B]], ptr align 4 {{.*}}, i32 4096, i1 false) // CHECK-NEXT: call void %h(ptr {{.*}} [[B]]) -// CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 4096, ptr [[B]]) +// CHECK-NEXT: call void @llvm.lifetime.end.p0({{(i64 4096, )?}}ptr [[B]]) #[no_mangle] pub fn const_indirect(h: extern "C" fn([u32; 1024])) { const C: [u32; 1024] = [0; 1024]; @@ -42,12 +42,12 @@ pub struct Str { // CHECK-LABEL: define void @immediate_indirect(ptr {{.*}}%s.0, i32 {{.*}}%s.1, ptr {{.*}}%g) // CHECK-NEXT: start: // CHECK-NEXT: [[A:%.*]] = alloca -// CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 8, ptr [[A]]) +// CHECK-NEXT: call void @llvm.lifetime.start.p0({{(i64 8, )?}}ptr [[A]]) // CHECK-NEXT: store ptr %s.0, ptr [[A]] // CHECK-NEXT: [[B:%.]] = getelementptr inbounds i8, ptr [[A]], i32 4 // CHECK-NEXT: store i32 %s.1, ptr [[B]] // CHECK-NEXT: call void %g(ptr {{.*}} [[A]]) -// CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 8, ptr [[A]]) +// CHECK-NEXT: call void @llvm.lifetime.end.p0({{(i64 8, )?}}ptr [[A]]) #[no_mangle] pub fn immediate_indirect(s: Str, g: extern "C" fn(Str)) { g(s); @@ -58,10 +58,10 @@ pub fn immediate_indirect(s: Str, g: extern "C" fn(Str)) { // CHECK-LABEL: define void @align_indirect(ptr{{.*}} align 1{{.*}} %a, ptr{{.*}} %fun) // CHECK-NEXT: start: // CHECK-NEXT: [[A:%.*]] = alloca [1024 x i8], align 4 -// CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 1024, ptr [[A]]) +// CHECK-NEXT: call void @llvm.lifetime.start.p0({{(i64 1024, )?}}ptr [[A]]) // CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[A]], ptr align 1 %a, i32 1024, i1 false) // CHECK-NEXT: call void %fun(ptr {{.*}} [[A]]) -// CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 1024, ptr [[A]]) +// CHECK-NEXT: call void @llvm.lifetime.end.p0({{(i64 1024, )?}}ptr [[A]]) #[no_mangle] pub fn align_indirect(a: [u8; 1024], fun: extern "C" fn([u8; 1024])) { fun(a); diff --git a/tests/codegen-llvm/intrinsics/transmute-simd.rs b/tests/codegen-llvm/intrinsics/transmute-simd.rs index e34b27e133359..92af16945abf3 100644 --- a/tests/codegen-llvm/intrinsics/transmute-simd.rs +++ b/tests/codegen-llvm/intrinsics/transmute-simd.rs @@ -97,10 +97,10 @@ pub extern "C" fn float_ptr_same_lanes(v: f64x2) -> PtrX2 { // CHECK-NOT: alloca // CHECK: %[[TEMP:.+]] = alloca [16 x i8] // CHECK-NOT: alloca - // CHECK: call void @llvm.lifetime.start.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.start.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: store <2 x double> %v, ptr %[[TEMP]] // CHECK: %[[RET:.+]] = load <2 x ptr>, ptr %[[TEMP]] - // CHECK: call void @llvm.lifetime.end.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.end.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: ret <2 x ptr> %[[RET]] unsafe { transmute(v) } } @@ -111,10 +111,10 @@ pub extern "C" fn ptr_float_same_lanes(v: PtrX2) -> f64x2 { // CHECK-NOT: alloca // CHECK: %[[TEMP:.+]] = alloca [16 x i8] // CHECK-NOT: alloca - // CHECK: call void @llvm.lifetime.start.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.start.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: store <2 x ptr> %v, ptr %[[TEMP]] // CHECK: %[[RET:.+]] = load <2 x double>, ptr %[[TEMP]] - // CHECK: call void @llvm.lifetime.end.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.end.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: ret <2 x double> %[[RET]] unsafe { transmute(v) } } @@ -125,10 +125,10 @@ pub extern "C" fn int_ptr_same_lanes(v: i64x2) -> PtrX2 { // CHECK-NOT: alloca // CHECK: %[[TEMP:.+]] = alloca [16 x i8] // CHECK-NOT: alloca - // CHECK: call void @llvm.lifetime.start.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.start.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: store <2 x i64> %v, ptr %[[TEMP]] // CHECK: %[[RET:.+]] = load <2 x ptr>, ptr %[[TEMP]] - // CHECK: call void @llvm.lifetime.end.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.end.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: ret <2 x ptr> %[[RET]] unsafe { transmute(v) } } @@ -139,10 +139,10 @@ pub extern "C" fn ptr_int_same_lanes(v: PtrX2) -> i64x2 { // CHECK-NOT: alloca // CHECK: %[[TEMP:.+]] = alloca [16 x i8] // CHECK-NOT: alloca - // CHECK: call void @llvm.lifetime.start.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.start.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: store <2 x ptr> %v, ptr %[[TEMP]] // CHECK: %[[RET:.+]] = load <2 x i64>, ptr %[[TEMP]] - // CHECK: call void @llvm.lifetime.end.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.end.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: ret <2 x i64> %[[RET]] unsafe { transmute(v) } } @@ -153,10 +153,10 @@ pub extern "C" fn float_ptr_widen(v: f32x4) -> PtrX2 { // CHECK-NOT: alloca // CHECK: %[[TEMP:.+]] = alloca [16 x i8] // CHECK-NOT: alloca - // CHECK: call void @llvm.lifetime.start.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.start.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: store <4 x float> %v, ptr %[[TEMP]] // CHECK: %[[RET:.+]] = load <2 x ptr>, ptr %[[TEMP]] - // CHECK: call void @llvm.lifetime.end.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.end.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: ret <2 x ptr> %[[RET]] unsafe { transmute(v) } } @@ -167,10 +167,10 @@ pub extern "C" fn int_ptr_widen(v: i32x4) -> PtrX2 { // CHECK-NOT: alloca // CHECK: %[[TEMP:.+]] = alloca [16 x i8] // CHECK-NOT: alloca - // CHECK: call void @llvm.lifetime.start.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.start.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: store <4 x i32> %v, ptr %[[TEMP]] // CHECK: %[[RET:.+]] = load <2 x ptr>, ptr %[[TEMP]] - // CHECK: call void @llvm.lifetime.end.p0(i64 16, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.end.p0({{(i64 16, )?}}ptr %[[TEMP]]) // CHECK: ret <2 x ptr> %[[RET]] unsafe { transmute(v) } } diff --git a/tests/codegen-llvm/intrinsics/transmute.rs b/tests/codegen-llvm/intrinsics/transmute.rs index 91cff38773d78..e327c100d7ddd 100644 --- a/tests/codegen-llvm/intrinsics/transmute.rs +++ b/tests/codegen-llvm/intrinsics/transmute.rs @@ -192,12 +192,12 @@ pub unsafe fn check_byte_from_bool(x: bool) -> u8 { #[no_mangle] pub unsafe fn check_to_pair(x: u64) -> Option { // CHECK: %[[TEMP:.+]] = alloca [8 x i8], align 8 - // CHECK: call void @llvm.lifetime.start.p0(i64 8, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.start.p0({{(i64 8, )?}}ptr %[[TEMP]]) // CHECK: store i64 %x, ptr %[[TEMP]], align 8 // CHECK: %[[PAIR0:.+]] = load i32, ptr %[[TEMP]], align 8 // CHECK: %[[PAIR1P:.+]] = getelementptr inbounds i8, ptr %[[TEMP]], i64 4 // CHECK: %[[PAIR1:.+]] = load i32, ptr %[[PAIR1P]], align 4 - // CHECK: call void @llvm.lifetime.end.p0(i64 8, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.end.p0({{(i64 8, )?}}ptr %[[TEMP]]) // CHECK: insertvalue {{.+}}, i32 %[[PAIR0]], 0 // CHECK: insertvalue {{.+}}, i32 %[[PAIR1]], 1 transmute(x) @@ -207,12 +207,12 @@ pub unsafe fn check_to_pair(x: u64) -> Option { #[no_mangle] pub unsafe fn check_from_pair(x: Option) -> u64 { // CHECK: %[[TEMP:.+]] = alloca [8 x i8], align 8 - // CHECK: call void @llvm.lifetime.start.p0(i64 8, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.start.p0({{(i64 8, )?}}ptr %[[TEMP]]) // CHECK: store i32 %x.0, ptr %[[TEMP]], align 8 // CHECK: %[[PAIR1P:.+]] = getelementptr inbounds i8, ptr %[[TEMP]], i64 4 // CHECK: store i32 %x.1, ptr %[[PAIR1P]], align 4 // CHECK: %[[R:.+]] = load i64, ptr %[[TEMP]], align 8 - // CHECK: call void @llvm.lifetime.end.p0(i64 8, ptr %[[TEMP]]) + // CHECK: call void @llvm.lifetime.end.p0({{(i64 8, )?}}ptr %[[TEMP]]) // CHECK: ret i64 %[[R]] transmute(x) } diff --git a/tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs b/tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs index 848aa910b584e..95e70bf56784d 100644 --- a/tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs +++ b/tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs @@ -19,6 +19,6 @@ pub fn outer_function(x: S, y: S) -> usize { // CHECK: [[spill:%.*]] = alloca // CHECK-NOT: [[ptr_tmp:%.*]] = getelementptr inbounds i8, ptr [[spill]] // CHECK-NOT: [[load:%.*]] = load ptr, ptr -// CHECK: call void @llvm.lifetime.start{{.*}}({{.*}}, ptr [[spill]]) +// CHECK: call void @llvm.lifetime.start{{.*}}({{(.*, )?}}ptr [[spill]]) // CHECK: [[inner:%.*]] = getelementptr inbounds i8, ptr [[spill]] // CHECK: call void @llvm.memcpy{{.*}}(ptr {{align .*}} [[inner]], ptr {{align .*}} %x diff --git a/tests/codegen-llvm/lifetime_start_end.rs b/tests/codegen-llvm/lifetime_start_end.rs index 0639e7640aa15..2df5acf54df58 100644 --- a/tests/codegen-llvm/lifetime_start_end.rs +++ b/tests/codegen-llvm/lifetime_start_end.rs @@ -8,27 +8,27 @@ pub fn test() { let a = 0u8; &a; // keep variable in an alloca - // CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, ptr %a) + // CHECK: call void @llvm.lifetime.start{{.*}}({{(i[0-9 ]+, )?}}ptr %a) { let b = &Some(a); &b; // keep variable in an alloca - // CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{.*}}) + // CHECK: call void @llvm.lifetime.start{{.*}}({{(i[0-9 ]+, )?}}{{.*}}) - // CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{.*}}) + // CHECK: call void @llvm.lifetime.start{{.*}}({{(i[0-9 ]+, )?}}{{.*}}) - // CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{.*}}) + // CHECK: call void @llvm.lifetime.end{{.*}}({{(i[0-9 ]+, )?}}{{.*}}) - // CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{.*}}) + // CHECK: call void @llvm.lifetime.end{{.*}}({{(i[0-9 ]+, )?}}{{.*}}) } let c = 1u8; &c; // keep variable in an alloca - // CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, ptr %c) + // CHECK: call void @llvm.lifetime.start{{.*}}({{(i[0-9 ]+, )?}}ptr %c) - // CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, ptr %c) + // CHECK: call void @llvm.lifetime.end{{.*}}({{(i[0-9 ]+, )?}}ptr %c) - // CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, ptr %a) + // CHECK: call void @llvm.lifetime.end{{.*}}({{(i[0-9 ]+, )?}}ptr %a) } diff --git a/tests/codegen-llvm/uninhabited-transparent-return-abi.rs b/tests/codegen-llvm/uninhabited-transparent-return-abi.rs index face1577c3f69..83d9a7a32ab21 100644 --- a/tests/codegen-llvm/uninhabited-transparent-return-abi.rs +++ b/tests/codegen-llvm/uninhabited-transparent-return-abi.rs @@ -23,7 +23,7 @@ extern "Rust" { #[no_mangle] pub fn test_uninhabited_ret_by_ref() { // CHECK: %_1 = alloca [24 x i8], align {{8|4}} - // CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %_1) + // CHECK-NEXT: call void @llvm.lifetime.start.p0({{(i64 24, )?}}ptr nonnull %_1) // CHECK-NEXT: call void @opaque({{.*}} sret([24 x i8]) {{.*}} %_1) #2 // CHECK-NEXT: unreachable unsafe { @@ -35,7 +35,7 @@ pub fn test_uninhabited_ret_by_ref() { #[no_mangle] pub fn test_uninhabited_ret_by_ref_with_arg(rsi: u32) { // CHECK: %_2 = alloca [24 x i8], align {{8|4}} - // CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %_2) + // CHECK-NEXT: call void @llvm.lifetime.start.p0({{(i64 24, )?}}ptr nonnull %_2) // CHECK-NEXT: call void @opaque_with_arg({{.*}} sret([24 x i8]) {{.*}} %_2, i32 noundef %rsi) #2 // CHECK-NEXT: unreachable unsafe {